behr Labor-Technik Extraction Kjeldahl method for determining nitrogen

Transcription

1 Extraction behr Labor-Technik EN Kjeldahl method for determining nitrogen

2 Contents The behr range for the extraction process 4 Examples and guidelines 6 Soxhlet extraction 8 Complete single extraction units 9 Series extraction devices 10 Accessories for Soxhlet extractions 12 Hot extraction according to Randall 14 Manual apparatus and accessories 15 Hot extraction according to Twisselmann 16 Single extraction unit 17 Series extraction devices and accessories 17 Hydrolysis 18 Hydrolysis unit and filtration unit 18 Raw fibre separation 19 Raw fibre separation and filtration unit 19 Extraction for soil analysis 20 Complete single extraction units 20 Series extraction devices 21 Determination of alcohol and volatile acid content 22 Determination of the essential oils content 24 Determination of the water content 24 Reflux distillation 25 Recirculating condenser 26

3 Contents Kjeldahl method for determining nitrogen The behr program for determination of nitrogen using the Kjeldahl method 29 behr Kjeldahl block digestion systems 31 Standard Kjeldahl block digestion systems, behr K 8, K 12 und K Micro Kjeldahl block digestion systems, behr K 16, K 24 und K Macro Kjeldahl block digestion systems, behr K 8 B 32 behr Kjeldahl block digestion systems with fully automatic lift 33 Accessories for Kjeldahl block digestion systems 34 Infrared rapid digestion units 35 Infrared digestion compared to block digestion 36 Digestion units 37 Digestion system with temperature control 41 Accessories for behr InKjel 42 behrotest fully equipped work stations 43 behrosog 3 scrubber 45 behr steam distillers S 1 to S 5 47 Maintenance set 49 Steam distillers S1 and S2 50 Steam distillers S3 and S4 51 Steam distiller S5 52 Equipping the models 53 Adapter for using different digestion vessels 54 Canister sets and manual titration station STI 55 Data collection and evaluation with KjelSoft 56

4 The behr range for the extraction process Extraction processes (more precisely: solid-liquid extraction process) are used to separate soluble components from a solid sample. Examples: Determining the fat content in foods Determining an impurity (e.g. PCB, abandoned armaments) in soil samples Examining the components of natural substances. Even brewing coffee is an extraction process. However, in the laboratory the focus is on completely dissolving the examined components from the sample under defined conditions and in a not unnecessarily diluted form. In the laboratory, solvents such as ligroin or hexane are used as extraction agents. The objective of all extraction processes is to dissolve as much of the soluble components as possible with a specific amount of solvent. This is achieved by constantly vaporising the solvent and allowing it to drip into the sample from a reflux condenser. In contrast to a coffee machine, the same solvent is constantly sent back to the sample. The extracted component accumulates in the distillation flask. Classic extraction: Soxhlet The standard extraction method is the Soxhlet method. behr apparatus for Soxhlet extractions fulfil all the various requirements in everyday laboratory practice. Practical brackets for condensers and intermediate extraction pieces for safe storage between extractions Extractor sizes from 30 ml to 1000 ml Compact apparatus with one sample position Series extraction devices with 4 or 6 sample positions Extractors with specially developed siphon tubes (make: "Bröckerhoff") guarantee consistent results across all sample positions. Extractors with taps remove the need for additional distillation after the extraction Condensers with screw connections improve work safety The hydrolysis units (1, 4 or 6 sample positions) also enable acid digestion prior to extraction (determination of the total fat content according to Weibull and Stoldt). 4

5 Extraction process Hot extraction according to Randall The hot extraction process according to Randall consists of three steps: Boiling Rinsing and evaporation. Boiling In the first step, the extraction thimble with the sample is located in the vessel with the boiling extraction agent - similar to a tea bag in a cup of hot water. Most of the substance to be extracted should dissolve in this step and is distributed in the solvent. The top part of the apparatus simply acts as a reflux condenser; the condensate drips into the extraction thimble and helps to dissolve the substance. Rinsing In the second step, the extraction thimble is lifted out of the pool. Extract may still adhere to the thimble; and some of the substance that has not yet dissolved may still be located in the sample. The condensate from the condenser flushes the remaining extract and progressively dissolves the previously undissolved portion. If the dissolved extract is to be subjected to further processing, the extraction is now complete. Otherwise, the solvent is removed in the third step. Evaporation Connect the recirculating tap to the condenser for evaporation. The condensate collects in the lower part of the condenser; it can be reused for the next extraction. Thanks to the the short path to the apparatus, the sample can be evaporated until it is almost dry. Benefits of the hot extraction process include A compact apparatus with short process paths, Low solvent requirement, Short extraction period - typically about an hour. Due to the short extraction period, hot extraction is also gentle on the extract. There are now also an increasing number of analysis processes that use hot extraction. Hot extraction according to Twisselmann In the Twisselmann process, the vessel in which the extraction thimble is placed is open at the bottom; the extract immediately flows back into the distillation flask. The extraction thimble is constantly rinsed by the solvent from above and hot steam circulates from below. 5

6 The "right" extraction for your task - examples Are you looking to analyse encased and bound fat in food? Hydrolysis Then use the standard Soxhlet extraction, e.g. fat determination according to Weibull-Stoldt or the AOAC international hydrolysis method Are you looking to determine the raw fat content in food and processed animal feed (with homogeneous composition)? Direct hot extraction according to Randall Hydrolysis to determine the total fat content for some samples prior to extraction if required Are you looking to examine the composition of packaging material or consumer products? For example Hot extraction according to Randall to determine plasticisers in packaging Soxhlet extraction of organic compounds from plant tissue Are you looking to analyse pesticide residues in grain products? Extraction of the residues and contaminants from food and fodder samples or other organic materials under inert conditions. The necessary detection limits are reached by higher sample weights 6

7 Extraction process Guidelines Glassware for Soxhlet extractions Extraction Roundbottomed flask Flatbottomed flask Extractor Condenser 30 ml 100 ml - 30 ml RFK ml 250 ml - 60 ml RFK ml 250 ml 250 ml 100 ml RFK ml 500 ml ml RFK ml 1,000 ml ml RFK 500 1,000 ml 2,000 ml - 1,000 ml RFK ,000 ml 5,000 ml - 2,000 ml RFK 2000 behr RFK extraction condenser behr RFK extraction condensers ensure minimum solvent loss, even at higher room or cooling water temperatures. More coils Optimised condensing coil incline Maximum cooling surface Cooling connections with threaded fittings RFK 7

8 Soxhlet extraction Classic fat determination with Soxhlet extraction after hydrolysis Hydrolysis principle This acid digestion process dissolves both "free fats" as well as "bound fats" from the overall fat content. The fat is frequently naturally enclosed in the cell matrix of the food or fodder or chemically bound. In these cases, a hydrolysis step before extraction completely releases the fat. Hydrolysis-digestion units p. 18 The user filters the hydrolysate of the separated sample by using a glass sample tube filled with sand or Celite. The user then rinses the fatty filter residue with water in order to remove the acid. Filter equipment for hydrolysis p. 18 After drying, the filter residue is finally extracted. Soxhlet extraction systems p. 9 8

9 Soxhlet Complete single extraction units The standard extraction method is the Soxhlet method. behr apparatus for Soxhlet extractions fulfil all the various requirements in everyday laboratory practice. Practical brackets for condensers and intermediate extraction pieces for safe storage between extractions Extractor sizes from 30 ml to 1,000 ml Compact apparatus with one sample position Series extraction devices with 4, 6 or 8 sample positions Extractors with specially developed siphon tubes (make: "Bröckerhoff") guarantee consistent extraction cycles across all sample positions Extractors with taps remove the need for additional distillation after the extraction Condensers with threaded fittings The behr hydrolysis units (4 or 6 sample positions) also enable acid digestion prior to extraction (determination of the total fat content according to Weibull and Stoldt). Complete single extraction units Complete single extraction units with base frame, heating device, bracket, tubes and glass apparatus (reaction flask, extractor, Dimroth condenser for extraction). Infinitely variable heating control. After the extraction cycle, the extractors with tap conduct the solvent directly into the dispensing bottle. Includes extraction thimble and boiling chips in a sample pack. Technical data the Soxhlet extraction KEX 100 F KEX 100 KEX 250 KEX 500/1000 Voltage/Frequency 230 VAC/ 50/60 Hz Power consumption 450 W 1100 W Weight approx. 7.5 kg approx. 8.5 kg Dimensions in cm (W x D x H) approx. 23 x 33 x 80 approx. 23 x 35 x 95 Complete single extraction units KEX 60 for 60 ml extraction B KEX 100 for 100 ml extraction B KEX 250 for 250 ml extraction B KEX 500 for 500 ml extraction B KEX 60 F for 60 ml extraction with tap B KEX 100 F for 100 ml extraction with tap B KEX 250 F for 250 ml extraction with tap B KEX 500 F for 500 ml extraction with tap B KEX 1000 F for 1,000 ml extraction with tap B

10 behrotest series extraction devices precisely aligned to your needs Cooling water distribution strip ensures uniform cooling at sample positions Practical condenser ledge to safely deposit the condenser between extractions Condensers with threaded fittings Drip tray Extractors with specially developed siphon tubes guarantee consistent extraction cycles across all sample positions S models: Extractors with taps remove the need for additional distillation after the extraction PTFE tap no fixing, does not have to be greased Extractor sizes from 30 ml to 250 ml Series extraction devices with 4, 6 or 8 sample positions Every sample position can be individually adjusted Brackets for safely holding the intermediate extraction pieces after removing the sample container 10

11 Soxhlet behrotest series extraction devices behrotest series extraction devices are the cost-effective and user-friendly solution for classic Soxhlet and fat extractions: Complete with reaction vessels, intermediate extraction pieces and condensers Energy individually adjustable for every sample position Cooling water distribution strip ensures uniform cooling at sample positions Extractors with specially developed siphon tubes (make: "Bröckerhoff") guarantee consistent extraction cycles across all sample positions Practical condenser ledge to safely deposit the condenser between extractions Brackets for safely holding the intermediate extraction pieces after removing the sample container S models: Extractors with taps remove the need for additional distillation after the extraction 100 ml extraction with flat-bottomed flask: Safe and practical behr precision positioning cradles for flat-bottomed flasks ensure an extremely safe and simple workflow for a 100 ml extraction. For conventional round-bottomed flasks behrotest series extraction devices - round-bottom flasks Make Sample positions Tap Extractor content ml Item no. R B R B R 604 S B R 606 S B R 104 S B R 106 S B R 108 S B R 254 S B R 256 S B the user needs additional cork rings to position the flask on the working surface. behrotest series extraction devices - flat-bottom flasks Make Sample positions Tap Extractor content ml Item no. R 104 S-SK B R 106 S-SK B R 108 S-SK B Technical data for the series extraction devices Voltage Frequency 4 sample positions 6 sample positions 8 sample positions 230 VAC 50/60 Hz Power consumption 1500 W 2250 W 3000 W Power consumption 7 A 10 A 13 A Weight (without glass) Dimensions in cm (W x D x H) (without glass) approx. 15 kg approx. 20 kg approx. 25 kg approx. 53 x 32 x 74 approx. 76 x 32 x 74 approx. 90 x 32 x 74 Flat-bottomed flasks can easily be placed on any flat surface. Benefits: No additional material required (cork rings) No additional sample manipulation (positioning in the cork ring) Improved vessel stability 11

12 Series extraction devices - with water bath for highly flammable solvents includes glassware and connection tubes Make Item description Extractor content ml Item no. WABEX sample positions simultaneously 100 B WABEX sample positions simultaneously 250 B WABEX sample positions simultaneously 100 B WABEX sample positions simultaneously 250 B Technical data WABEX 410/425 WABEX 610/625 Dimensions in cm (H x W x D) 81 x 68 x x 98 x 32 WABEX 425 Weight (without glass) 15 kg 19 kg Nominal voltage 230 V 230 V Power consumption 1000 W 1500 W EZ 100/H Accessories for the Soxhlet extraction Extractors EZ 60 Soxhlet extractor, 60 ml B EZ 60/H Soxhlet extractor, 60 ml, with tap B EZ 100 Soxhlet extractor, 100 ml B EZ 100/H Soxhlet extractor, 100 ml, with tap B EZ 250 Soxhlet extractor, 250 ml B EZ 250/H Soxhlet extractor, 250 ml, with tap B EZ 500 Soxhlet extractor, 500 ml B EZ 500/H Soxhlet extractor, 500 ml, with tap B EZ 1000/H Soxhlet extractor, 1,000 ml, with tap B Extraction thimbles EX 60 HS for EZ 60 (EZ 60/H), package includes 25 units B EX 100 HS for EZ 100 (EZ 100/H), package includes 25 units B EX 250 HS for EZ 250 (EZ 250/H), package includes 25 units B EX 500 HS for EZ 500 (EZ 500/H), package includes 25 units B EX 1000 HS for EZ 1000/H, package includes 25 units B Stands RIP 4 for 4 extraction thimbles up to ø 38 mm B RIP 6 for 6 extraction thimbles up to ø 38 mm B EX 100 HS 12

13 Soxhlet PTFE sleeves PTFE 34 PTFE sleeves for 60 ml extractors B PTFE 45 PTFE sleeves for 100 ml and 250 ml extractors B PTFE 60 PTFE sleeves for 500 ml extractors B PTFE 71 PTFE sleeves for 1,000 ml extractors B Round-bottomed flask RK ml, for 60 ml and 100 ml extraction, (NS 29/32) B RK ml, for 250 ml extraction, (NS 29/32) B RK ,000 ml, for 500 ml extraction, (NS 29/32) B RK ,000 ml, for 1,000 ml extraction, (NS 29/32) B RK 250 Flat-bottomed flask SK ml, for 100 ml extraction B Reflux condensers RFK 60 for 60 ml extractors B RFK 100 for 100 ml and 250 ml extractors B RFK 500 for 500 ml extractors B RFK 1000 for 1,000 ml extractors B Positioning cradles AM 100/94 for 100 ml round-bottomed flasks including spacing inlay B AM 250/941 for 250 ml round-bottomed flasks with integrated spacer bars B AM 250/942 for 250 ml flat-bottomed flasks with integrated spacer bars B AM 500/941 for 500 ml round-bottomed flasks with integrated spacer bars B AM 1000/145 for 1,000 ml round-bottomed flasks including spacing inlay B RK 250 in positioning cradle AM 250/941 SK 250 in positioning cradle AM 250/942 RIP 4 and RIP 6 13

14 Hot extraction according to Randall for faster extraction E 4 14

15 Randall Immerse Wash Dry Manual apparatus for hot extraction according to Randall. Several times faster than a customary Soxhlet extraction. Incl. 1 set of extraction thimbles, 100 ml. Optimal safety thanks to screw-fastened extraction units Multiple position extraction units: Every extraction thimble with sample can be independently adjusted The user can lower and raise all the extraction units into/out of the heating chamber with a single lever Every heating position has a separate temperature control Manual apparatus according to Randall E 4 E 1 One sample position B E 4 Four individually adjustable sample positions B E 6 Six individually adjustable sample positions B EX 75 HS Matching extraction thimbles for the EB 75 B EB 75 Beaker for extraction B SIST 100 Boiling chips, 100 g B Stands RIP 475 for 4 extraction beakers B RIP 675 for 6 extraction beakers B Technical data Number of sample positions E 1 E 4 E E 1 Dimensions (W x D x H) 23 x 27 x 60 cm 55 x 42 x 67 cm 85 x 42 x 67 cm Weight 6 kg 34 kg 50 kg Nominal voltage 230 V~, 50/60 Hz Nominal power 360 W 1440 W 2160 W Solution volume 60 ml; max 75 ml RIP

16 Extraction according to Twisselmann R 106 T 16

17 Twisselmann The extraction according to Twisselmann is a continuous hot extraction. It functions in a similar manner to the Soxhlet extraction. However, the temperature in the sample in the Twisselmann extractor is extremely hot, i.e. close to the solvent's boiling point. This improves solubility and shortens the extraction time. The higher extraction temperature results from the condensed solvent flowing through the extraction thimble from above mixing with the rising, hot solvent vapour from below. The temperature of the mixture is much higher than that of the condensed solvent. The Twisselmann extraction reduces the extraction time by up to 50% compared to the Soxhlet extraction. Single extraction unit for hot extraction according to Twisselmann Complete single extraction unit with base frame, heating device, bracket, tubes and glass apparatus (reaction flask, extractor, Dimroth condenser for extraction) as well as a sample pack with extraction thimbles and boiling chips. KEX 100 T Single extraction unit for hot extraction according to Twisselmann B behrotest series extraction devices for hot extraction according to Twisselmann Cost-effective and user-friendly apparatus for hot extraction according to Twisselmann Energy individually adjustable for every sample position Cooling water distribution distribution strip ensures uniform cooling at sample positions Practical condenser ledge to safely deposit the condenser between hot extractions Brackets for safely holding the intermediate extraction pieces after removing the sample container behrotest series extraction devices for hot extraction according to Twisselmann - round-bottomed flasks R 104 T R 106 T Complete for 4 positions simultaneously with 250 ml round-bottomed flasks Complete for 6 positions simultaneously with 250 ml round-bottomed flasks B B behrotest series extraction devices for hot extraction according to Twisselmann - flat-bottomed flasks R 104T-SK R 106T-SK Complete for 4 positions simultaneously with 250 ml flat-bottomed flasks Complete for 6 positions simultaneously with 250 ml flat-bottomed flasks B B Accessories for extractions EZT Extractor, 100 ml, for the Twisselmann extractors B PTFE 45 PTFE sleeves for 100 ml and 250 ml extractors B RFKT Condenser for 100 ml Twisselmann extractors B

18 Hydrolysis Hydrolysis Sample preparation for the extraction The Weibull-Stoldt method The quantitative determination of the fat content of food is performed by extraction with a solvent. The "free fat" is determined by direct extraction. The "total fat content" includes both the "free fat" and the "bound fats" that are dissolved by acid digestion (hydrolysis). behrotest hydrolysis unit for acid digestion Hydrolysis-digestion apparatus with 4 or 6 sample positions. Complete with: 600 ml beaker Water-cooled condenser with cool water distribution Condenser stand with drip tray Heating positions individually infinitely adjustable Main power switch with pilot light EXR 4 Fully assembled complete device with all the necessary accessories. behrotest hydrolysis unit for acid digestion EXR 4 Hydrolysis unit, 4 sample positions B EXR 6 Hydrolysis unit, 6 sample positions B behrotest filtration unit made of borosilicate glass Complete with: Filtration attachment, 400 ml, threaded PP funnel, threaded Sieve plate with 2 seals Stainless steel frame PP water suction pump Tweezers Vacuum hose Filtration unit for hydrolysis FU 4 FU 4 Filtration unit for hydrolysis with 4 positions B FU 6 Filtration unit for hydrolysis with 6 positions B

19 Raw fibre separation Raw fibre separation behrotest apparatus for raw fibre separation Raw fibre separation apparatus with 4 or 6 sample positions. Complete with: 600 ml beaker Water-cooled condenser with cool water distribution Condenser stand with drip tray Heating positions individually infinitely adjustable Main power switch with pilot light Fully assembled complete device with all the necessary accessories. behrotest apparatus for raw fibre separation EXR 4 with 4 sample positions B EXR 6 with 6 sample positions B EXR 6 behrotest filtration unit for raw fibre separation Filtration unit for raw fibre separation with 4 or 6 sample positions. Complete with: Filter crucible Filtration advancers Seals Connection fittings Drainage pipe with connecting nozzle for vacuum or water suction pump e.g. to determine the raw fibre content according to EN ISO6865 Filtration unit for raw fibre separation SC 4 with 4 positions B SC 4 SC 6 with 6 positions B MVP 46 - complete extraction unit for SC 4 and SC 6 Complete with: Diaphragm vacuum pump 2 ltr. collection bottle Tubes MVP 46 Complete extraction unit B MVP 46 19

20 Extraction for soil analysis The standard extraction method for soil analysis is also the Soxhlet method. behr apparatus for Soxhlet extractions fulfil all the various requirements in everyday laboratory practice. Practical brackets for condensers and intermediate extraction pieces for safe storage between extractions Extractor sizes from 30 ml to 100 ml Single extraction units with one sample position Series extraction devices with 4, 6 or 8 sample positions Extractors with specially developed siphon tubes (make: "Bröckerhoff") guarantee consistent extraction cycles across all sample positions Extractors with taps remove the need for additional distillation after the extraction Condensers with threaded fittings Complete single extraction units Complete single extraction units with base frame, heating device, bracket, tubes and glass apparatus (reaction flask, extractor, Dimroth condenser for extraction). Infinitely variable heating control. After the extraction cycle, the extractors with tap conduct the solvent directly into the dispensing bottle. Includes extraction thimbles and boiling chips in a sample pack. Complete single extraction units KEX 30 KEX ml extraction B KEX 30 F 30 ml extraction with tap B KEX ml extraction B KEX 100 F 100 ml extraction with tap B Technical data for the single extraction unit KEX 30 Voltage/Frequency Power consumption Weight 230 VAC/ 50/60 Hz 450 W approx. 7.5 kg Dimensions in cm (W x D x H) approx. 23 x 33 x 71.5 Accessories for 30 ml extractions EZ 30 Soxhlet extractor, 30 ml B EZ 30/H Soxhlet extractor, 30 ml, with tap B EX 30 HS Extraction thimbles for EZ 30, package includes 25 units B PTFE 29 PTFE sleeves for 30 ml extractors, package includes 12 units B RK 100 Round-bottom flask, 100 ml, for 30 ml extractions, (NS29/32) B RFK 30 Reflux condenser for 30 ml extractions B

21 Extraction for soil analysis behrotest series extraction devices behrotest series extraction devices are the cost-effective and user-friendly solution for classic Soxhlet and fat extractions: Complete with reaction vessels, intermediate extraction pieces and condensers Energy individually adjustable for every sample position Cooling water distribution strip ensures uniform cooling at sample positions Extractors with specially developed siphon tubes (make: "Bröckerhoff") guarantee consistent extraction cycles across all sample positions Practical condenser ledge to safely deposit the condenser between extractions Brackets for safely holding the intermediate extraction pieces after removing the sample container S models: Extractors with taps remove the need for additional distillation after the extraction behrotest series extraction devices - round-bottom flasks Make Sample positions Tap Extractor content ml Item no. R 108 S R B R B R B R 304 S B R 306 S B R 308 S B R 104 S B R 106 S B R 108 S B behrotest series extraction devices - flat-bottom flasks Make Sample positions Tap Extractor content ml Item no. R 104 S-SK B R 106 S-SK B R 108 S-SK B R 306 S Accessories for 100 ml extractions EZ 100 Soxhlet extractor, 100 ml B EZ 100/H Soxhlet extractor, 100 ml, with tap B EX 100 HS Extraction thimbles for EZ 100, package includes 25 units B PTFE 45 PTFE sleeves for 100 ml extractors B RK 250 Round-bottom flasks, 250 ml, for 100 ml extraction B RFK 100 Reflux condenser for 100 ml extractions B AM 100/94 for 100 ml round-bottomed flasks including spacing inlay B

22 Alcohol and volatile acids Determination of the alcohol and volatile acid content Steam distillation units D 1 and D 2 Alcohol Organic acids SOS Beer fermentation process Ammonium chloride in liquorice products Apparatus for determining the alcohol content and the volatile acids in wine and other alcoholic drinks. Complete glassware set with volumetric flask and pycnometer. behr D 1 and D 2 are particularly well suited for high sample throughputs due to their speed. The supplied Windows software allows a bidirectional transmission of application-specific distillation parameters using the RS232 interface between one or more devices and a PC. A library with current applications is already included on the CD. The RS232 interface also allows data to be transmitted from the device to the PC during operation. The user can save the data and print it as required. D 1 D 1 D 2 Steam distilling apparatus for determining the alcohol content, distillation in a pycnometer Steam distilling apparatus for determining organic acids, distillation in a 500 ml Erlenmeyer flask B B Technical data for behr D 1 Dimensions in cm (W x H x D) approx. 41 x 67.5 x 41 Weight approx. 32 kg Nominal voltage 230 VAC 50 Hz/ 60 Hz Power consumption 1700 W 9 A/ 18 A Cooling water consumption approx. 5 l/min Storage container any size, recommendation: behrotest canister set Display LCD Programs 1 D 2 22

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24 Essential oil Determination of the essential oil content Compact system for determining the essential oil content Complete compact system for determining the essential oil content in Pharmaceuticals, Spices Seasoning and Herbs according to ISO With base frame, heating devices, brackets, coolant hoses and glass apparatus. Compact system for determining the essential oil content KOL with 500 ml flask B KOL 2 with 1,000 ml flask B Complete compact system for determining the essential oil content in citrus fruits and their derivatives according to Clevenger (3,000 ml distillation flask). KOL CLE Compact system for determining the essential oils in citrus fruits and their derivatives B Water content Water content Compact system for determining the water content by azeotropic distillation Complete compact system for determining the water content by azeotropic distillation. Suitable for inhomogeneous, bulky food such as dried fruit, sauerkraut, etc. With base frame, heating device, bracket and glass apparatus. KWA 500 behrotest compact apparatus for determining the water content. Complete with stand, glassware set, heating and hose connections B KWA

25 Reflux distillation Reflux distillation Reflux distillation apparatus Complete apparatus for reflux distillation, consisting of Hot bar, 4 heating positions Positioning cradles Support rods Cooling water distribution with condenser support panel and condenser brackets Reaction flask behr high-performance glass coolers Series reflux distillation apparatus RH heating positions for 100 ml round-bottomed flasks, complete B RH heating positions for 100 ml round-bottomed flasks, complete B RH heating positions for 250 ml round-bottomed flasks, complete B RH heating positions for 250 ml round-bottomed flasks, complete B RH heating positions for 500 ml round-bottomed flasks, complete B RH heating positions for 500 ml round-bottomed flasks, complete B RH 254 Technical data for reflux distillation apparatus 4 sample positions 6 sample positions Voltage 230 VAC Frequency 50/60 Hz Power consumption 1500 W 2250 W Power consumption 7 A 10 A Weight (without glass) approx. 15 kg approx. 20 kg Dimensions in cm (W x D x H) (without glass) approx. 53 x 32 x 74 approx. 76 x 32 x 74 Single reflux distillation apparatus Complete apparatus for reflux distillation, consisting of Complete frame with condenser support panel and condenser bracket Positioning cradle Reaction flask behr high-performance glass cooler Tubing Single reflux distillation apparatus KRD 50 1 heating position for 50 ml round-bottomed flasks, complete B KRD heating position for 100 ml round-bottomed flasks, complete B KRD heating position for 250 ml round-bottomed flasks, complete B KRD heating position for 500 ml round-bottomed flasks, complete B KRD heating position for 1,000 ml round-bottomed flasks, complete B KRD

26 Recirculating condenser The UK series behrotest UK recirculating condenser behrotest UK series recirculating condensers are ideally suited for use with the behr separation and distillation systems. The new and improved successor models of our UK 12 series are just as reliable and suitable for everyday use as their predecessors, but their performance has improved by 20%. They are also generally suited as replacements for condensing systems that are cooled using domestic water for the dissipation of process heat for the thermostatic control of apparatus such as centrifuges, microscopes, spectrometers, analysers, distillation apparatus, rotary evaporators, electrophoresis, reaction vessels All recirculating condensers can be used as a closed or open system. Features: Electronic temperature control with LED display Float switch to monitor the coolant level UK 1020 Limit alarm if the permitted field of activity is exceeded Cooling unit: quiet, fully hermetic, air-cooled, low-maintenance 12 mm internally threaded tube connections (M10 x 1) 3/4" filler spout with vent valve on the surface of the device Stainless steel housing parts Non-ferrous metal heat exchanger Circumferential skirting protection rings both top and bottom UK 2020 has a cooling unit with two separately operating cooling circuits. This provides better setting options and the opportunity of emergency operation with the second machine if a compressor fails. UK 420 UK 620 UK 1020 UK watt cooling capacity with circulating pump and digital temperature control for regulating the temperature and cooling individual or several apparatus 660 watt cooling capacity with circulating pump and digital temperature control for regulating the temperature and cooling individual or several apparatus 1200 watt cooling capacity with circulating pump and digital temperature control for regulating the temperature and cooling individual or several apparatus 2200 watt cooling capacity with circulating pump and digital temperature control for regulating the temperature and cooling several apparatus B B B B

27 Recirculating condenser Technical data UK 420 UK 620 Cooling capacity in watts at at at Operating range +5 to +40 C +5 to +40 C Recirculating pump Output 4 l/min 13 l/min Discharge head 1.5 mws 6 mws Electr. connection Volt Hz Amp 1,5 2,8 External dimensions in cm (W x L x H) approx. 26 x 37 x 40 approx. 31 x 36 x 52 Weight approx kg approx. 32 kg Coolant container 4.0 l 2.6 l UK 1020 UK 2020 Cooling capacity in watts at at at Operating range +5 to +40 C +5 to +40 C Recirculating pump Output 12 l/min 12 l/min Discharge head 26 mws 29 mws Electr. connection Volt Hz Amp 3,5 8,0 External dimensions in cm (W x L x H) approx. 34 x 40 x 60 approx. 44 x 47 x 76 Weight approx. 41 kg approx. 80 kg Coolant container 4.6 l 9.0 l 27

28 This may also interest you Extraction units for extracting liquids Determination of the nitrogen content according to Kjedahl: Infrared digestion devices with manual operation and also programmable Block digestion unit, also with fully-automatic lift Steam distillation units for (almost) any requirement Titration devices The complete range for the CSB titration method: Dosing units for sulphuric acid, manual and also programmable Digestion units with fully-automatic time/temperature profile for standardised CSB determination Titrators, manual and fully-automatic, also as dosing-titrating combination Fully-automatic analysers for determining the halogen content High-precision analytics by using an oven unit with programmable infrared oven and resistance oven with fixed temperature High degree of automation due to sampler for sample preparation and sample injection 28

29 The behr program for the Kjeldahl method for determining nitrogen The behr program for the determination of nitrogen using the Kjeldahl method provides the user individually configurable complete solutions for the laboratory. Digestion units Kjeldahl block digestion systems Block digestion systems with high-quality corrosion-resistant block housing made of stainless steel. Manual or with automatic lift. High-efficiency heating and extraction hood with exhaust collector behr single-knob control for particularly easy and fast programming Menu navigation in national language 10 freely configurable programs for block temperature and digestion time Applications can be saved Standard systems Digestion vessels with 250 ml volume (8, 12 or 20 sample slots) Micro-Kjeldahl systems Digestion vessels with 100 ml volume (16, 24 or 40 sample slots) Infrared digestion systems The digestion units of the behrotest InKjel series are equipped with efficient quartz glass infrared heating. Apart from the traditional series with energy control, there is a fully equipped series of appliances for temperature-controlled digestion. The quality and positioning of the behr infrared heaters guarantees the user identical heating phases and digestion temperatures on all sample slots. This also applies to double-rowed arrangement in insert racks for 12 samples. Direct sample heating by the infrared heaters prevents the agonisingly long heating and cooling times of conventional heating block systems. The behrotest InKjel is therefore the ideal rapid digestion system for the determination of nitrogen using the Kjeldahl method and other high-temperature digestion tests. Scrubber The two-stage behrosog scrubber pre-separator plus safety stage prevents any acid fumes whatsoever from reaching the environment. Titration stations The behrotest STI manual titration station or an automatic titrator ensure reliable, safe and fast titration for completion of the nitrogen determination. Collection and evaluation module Integrated collection and evaluation solution for nitrogen determination according to Kjeldahl with analytical scales, titration station and collection and evaluation software. 29

30 Areas of application Dairies Cocoa/drinking chocolate Meat/sausages Biogas plants Preserves/ canned foods Malt houses Coffee Feedstuffs Spirits Nuts Delicatessen Wastewater 30

31 Block digestion systems behr Kjeldahl block digestion systems Standard Kjeldahl block digestion systems, behr K 8, K 12 and K 20 Block digestion systems with high-quality corrosion-resistant block housing made of stainless steel. With 8, 12 or 20 sample slots for standard Kjeldahl digestion vessels with a volume of 250 ml. High-efficiency heating and extraction hood with exhaust collector. behr single-knob control for particularly easy and fast programming. Menu navigation in national language. 10 freely configurable programs for block temperature and digestion time. Applications can be saved. USB interface. The Windows software supplied enables the user to bidirectionally transfer applicationspecific time/temperature profiles between one or several units and a PC via the interface. The removable inspection door on the insertion rack enables the progress of the digestion to be observed. Complete systems with digestion vessels, rack and extraction hood. Standard Kjeldahl block digestion system Type Product description Art. No. K 8 with 8 sample slots, for digestion vessels with a volume of 250 ml B K 12 K 12 with 12 sample slots, for digestion vessels with a volume of 250 ml B K 20 with 20 sample slots, for digestion vessels with a volume of 250 ml B Micro Kjeldahl block digestion systems, behr K 16, K 24 and K 40 Block digestion systems with high-quality corrosion-resistant block housing made of stainless steel. With 16, 24 or 40 sample slots for micro Kjeldahl digestion vessels with a volume of 100 ml. High-efficiency heating and extraction hood with exhaust collector. behr single-knob control for particularly easy and fast programming. Menu navigation in national language. 10 freely configurable programs for block temperature and digestion time. Applications can be saved. USB interface. The Windows software supplied enables the user to bidirectionally transfer applicationspecific time/temperature profiles between one or several units and a PC via the interface. The removable inspection door on the insertion rack enables the progress of the digestion to be observed. Complete systems with digestion vessels, rack and extraction hood. Micro Kjeldahl block digestion system Type Product description Art. No. K 16 with 16 sample slots, for digestion vessels with a volume of 100 ml B K 20 K 24 K 40 with 24 sample slots, for digestion vessels with a volume of 100 ml with 40 sample slots, for digestion vessels with a volume of 100 ml B B

32 Block digestion systems Macro-Kjeldahl block digestion systems, behr K 8 B Block digestion systems with high-quality corrosion-resistant block housing made of stainless steel. With 8 sample slots, for macro Kjedldahl digestion vessels with a volume of 400 ml. High-efficiency heating and extraction hood with exhaust collector. behr single-knob control for particularly easy and fast programming. Menu navigation in national language. 10 freely configurable programs for block temperature and digestion time. Applications can be saved. USB interface. The Windows software enables the user to bidirectionally transfer application-specific time/temperature profiles between one or several units and a PC. The removable inspection door on the insertion rack enables the progress of the digestion to be observed. Complete systems with digestion vessels, rack and extraction hood. Macro Kjeldahl block digestion system Type Product description Art. No. K 8 B with 8 sample slots, for digestion vessels with a volume of 400 ml B Technical data of the behr Kjeldahl block digestion systems K 8 K 12 K 16/K 24 K 20/K 40 Voltage Frequency 230 VAC 50/60 Hz Power consumption 1000 W 1500 W 1500 W 2200 W Current consumption 5 A 8 A 8 A 10 A Weight (incl. vessels) approx. 28 kg approx. 30 kg approx. 30 kg approx. 34 kg Dimensions in cm (W x D x H) approx. 42 x 51 x 76.5 approx. 48 x 51 x 76.5 Temperature range

33 behr Kjeldahl block digestion systems with fully automatic lift behr s L series Kjeldahl block digestion systems are equipped with a fully automatic lift. This enables the user to avoid handling the heavy samples unit and the hot chemicals. The software not only controls the sample lift but also the behrosog 3 and therefore enables largely automatic digestion. At the end of the digestion the lift moves the complete unit upwards, including the rack and extraction hood. Following a freely programmable cooling/ extraction time, it raises the extraction hood and moves it into the end position. Temperature profiles and the starting time of the digestion are freely programmable. behr single-knob control for particularly easy and fast programming. USB interface. The Windows software supplied enables the user to bidirectionally transfer application-specific time/temperature profiles via the interface between one or several units and a PC. The removable inspection door on the insertion rack enables the progress of the digestion to be observed. Available with 230 V~/50-60 Hz. behr Kjeldahl block digestion systems with fully automatic lift Type Product description Art. No. K 40 L K 12 L Automatic Kjeldahl block digestion system with lift. 12 sample slots, for digestion vessels with a volume of 250 ml B K 20 L Automatic Kjeldahl block digestion system with lift. 20 sample slots, for digestion vessels with a volume of 250 ml B K 24 L Automatic micro Kjeldahl block digestions system with lift. 24 sample slots, for digestion vessels with a volume of 100 ml B K 40 L Automatic micro Kjeldahl block digestions system with lift. 40 sample slots, for digestion vessels with a volume of 100 ml B Fully automatic boil cool finished 33

34 Block digestion systems Accessories for Kjeldahl block digestion systems Digestion vessels for K blocks Type Product description Art. No. SR 3i Round bottom digestion vessel, 250 ml B SR 4 Round bottom digestion vessel, 100 ml for micro Kjeldahl B SR 5 Round bottom digestion vessel, 400 ml for K 8 B B Good to know: behrotest standard digestion vessels have standard dimensions. That means they fit into digestion and distillation units of most brands. Of course, it also means that standard digestion vessels of most brands can be used with behr distillation units. SR 3i SR 4 SR 5 Accessories for the behr Kjeldahl digestion Type Product description Art. No. KT 1 Catalyst tablets (5.0 g K 2 SO 4 ; 0.5 g CuSO 4 ), tin with 1000 tablets (CX) KT 2 Catalyst tablets (5.0 g K 2 SO 4 ; 0.15 g CuSO 4 ; 0.15 g TiO 2 ), tin with 1000 tablets (CT) KT 3 Catalyst tablets (3.5 g K 2 SO 4 ; 0.4 g CuSO 4 ), tin with 1000 tablets (CK) B B B KT 4 AFS Catalyst tablets (3.5 g K 2 SO 4 ; 3.5 g Se), tin with 1000 tablets (ST) Anti-foam tablets, tin with 100 tablets for steam distillation B B SIST 100 Boiling stones for the Kjeldahl digestion, contents 100 g B WP Weighing paper, block of 250 sheets, 95 x 110 mm B KT 1 SIST

35 Infrared rapid detection units behrotest InKjel

36 Infrared rapid detection units Infrared digestion compared to block digestion Particularly uniform heating of the samples using side heaters, therefore no zones with different temperatures. Hardly any boiling delays.. Samples are heated from underneath, therefore higher requirements for users to prevent boiling delays. Quartz heaters: uniform effect along the entire length insulated from the housing, no energy loss through heat transfer full heat output within 1 minute, no preheating required Infrared digestion; no preheating Finished after typ. 60 minutes Digestion in heating block: preheating necessary Digestion period longer than in IR 36

37 Digestion units The digestion units of the behrotest InKjel series are equipped with efficient infrared heating. The quality and positioning of the behr infrared heaters guarantees the user identical heating phases and digestion temperatures on all sample slots. This also applies to double-rowed arrangement in insert racks for 12 samples. The digestion tubes hang in the rack and do not touch the bottom of the digester. As a result, the digestion vessels are at less risk of breakage than in an aluminium heating block. Direct sample heating by the infrared heaters prevents the agonisingly long heating times of conventional heating block systems. You can reach a radiation temperature of 830 C within one minute and heat up the samples in 10 minutes to their boiling temperature of 410 C. High-quality quartz heaters instead of the usual steel tubular heating elements ensure particularly uniform heating of all sample slots. behr single-knob control for particularly easy and fast programming. Menu navigation in national language. The behrotest InKjel is therefore the ideal digestion system for the determination of nitrogen using the Kjeldahl method and other high-temperature digestion tests. With the Kjeldahl digestion method, the temperature is set by the boiling temperature of the sulphuric acid. InKjel 625 M rapid digestion system with manual energy control for 6 sample slots, 250 ml Rapid digestion system with manual energy control and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 6 glass digestion tubes of 250 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 625 M Manually controllable infrared digestion system for 6 glass tubes of 250 ml B InKjel 625 M InKjel 625 P rapid digestion system with 25 freely configurable programs for energy and digestion time for 6 sample slots, 250 ml Rapid digestion system with 25 freely configurable programs for energy and digestion time and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 6 glass digestion tubes of 250 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Windows software enables the user to bidirectionally transfer application-specific time/temperature profiles between one or several units and a PC via the USB interface. Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 625 P Programmable infrared digestion system for 6 glass tubes of 250 ml B InKjel 625 P 37

38 Infrared rapid detection units InKjel 1210 M rapid digestion system with manual energy control for 12 sample slots, 100 ml Rapid digestion system with manual energy control and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 12 glass digestion tubes of 100 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 1210 M Manually controllable infrared digestion system for 12 glass tubes of 100 ml B InKjel 1210 P rapid digestion system with 25 freely configurable programs for energy and digestion time for 12 sample slots, 100 ml InKjel 1210 M Rapid digestion system with 25 freely configurable programs for energy and digestion time and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 12 glass digestion tubes of 100 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Windows software enables the user to bidirectionally transfer application-specific time/temperature profiles between one or several units and a PC via the USB interface. Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 1210 P Programmable infrared digestion system for 12 glass tubes of 100 ml B InKjel 1225 M rapid digestion system with manual energy control for 12 sample slots, 250 ml InKjel 1210 P Rapid digestion system with manual energy control and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 12 glass digestion tubes of 250 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 1225 M Manually controllable infrared digestion system for 12 glass tubes of 250 ml B InKjel 1225 M 38

39 InKjel 1225 P rapid digestion system with 25 freely configurable programs for energy and digestion time for 12 sample slots, 250 ml Rapid digestion system with 25 freely configurable programs for energy and digestion time and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 12 glass digestion tubes of 250 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Windows software enables the user to bidirectionally transfer application-specific time/ temperature profiles between one or several units and a PC via the USB interface. Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 1225 P InKjel 1225 P Programmable infrared digestion system for 12 glass tubes of 250 ml B InKjel 450 M rapid digestion system with manual energy control for 4 sample slots, 500 ml Rapid digestion system with manual energy control and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 4 glass digestion tubes of 500 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 450 M Manually controllable infrared digestion system for 4 glass tubes of 500 ml B InKjel 450 M InKjel 450 P rapid digestion system with 25 freely configurable programs for energy and digestion time for 4 sample slots, 500 ml Rapid digestion system with 25 freely configurable programs for energy and digestion time and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 4 glass digestion tubes of 500 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Windows software enables the user to bidirectionally transfer application-specific time/ temperature profiles between one or several units and a PC via the USB interface. Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 450 P Programmable infrared digestion system for 4 glass tubes of 500 ml B InKjel 450 P 39

40 Infrared rapid detection units InKjel 475 M rapid digestion system with manual energy control for 4 sample slots, 750 ml Rapid digestion system with manual energy control and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 4 glass digestion tubes of 750 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 475 M Manually controllable infrared digestion system for 4 glass tubes of 750 ml B InKjel 475 P rapid digestion system with 25 freely configurable programs for energy and digestion time for 4 sample slots, 750 ml InKjel 475 M Rapid digestion system with 25 freely configurable programs for energy and digestion time and direct heating of the samples using high-quality quartz infrared heaters (1500 W). 4 glass digestion tubes of 750 ml Constant heating of all samples to 410 C in approx. 10 minutes Uniform heating of all sample slots Windows software enables the user to bidirectionally transfer application-specific time/ temperature profiles between one or several units and a PC via the USB interface. Energy savings compared to aluminium block Complete system with tiered rack, fume removal unit, insert rack and glass digestion tubes. Type Product description Art. No. InKjel 475 P Programmable infrared digestion system for 4 glass tubes of 750 ml B Technical data for digestion systems InKjel 475 P InKjel M InKjel P Voltage Frequency 230 VAC 50/60 Hz Power consumption 1500 W 1500 W Current consumption 8 A 8 A Weight (incl. vessels) approx. 20 kg approx. 20 kg Dimensions in cm (W x D x H) approx. 54 x 44 x 75 approx. 54 x 44 x 75 Energy setting range %, continuously variable, manually adjustable %, in steps of 1 % Time setting range min, in steps of 1 min Programs 25 40

41 Rapid Infrared Digestion Systems behrotest InKjel TC Rapid Infrared Digestion Systems with Temperature Control behr InKjel TC rapid infrared devices with temperature control combine the advantages of infrared digestion and block digestion in one unit: Their fast infrared digestion at controlled temperatures enables an extremely high sample throughput. With the programmable models of the InKjel TCP line the analyst has the choice from 25 individually configurable programs for temperature and digestion time. You can reach a radiation temperature of 830 C within one minute and heat up the samples in 10 minutes to their boiling temperature of 410 C. High-quality quartz heaters instead of the usual steel tubular heating elements ensure particularly uniform heating of all sample slots. Digestion systems with temperature control Type Product description Art. No. InKjel 625 TCP InKjel 1210 TCP InKjel 1225 TCP InKjel 450 TCP InKjel 475 TCP Programmable rapid infrared digestion system for 6 reaction vessels with 250 ml volume. Temperature control. Programmable rapid infrared digestion system for 10 reaction vessels with 100 ml volume. Temperature control. Programmable rapid infrared digestion system for 12 reaction vessels with 250 ml volume. Temperature control. Programmable rapid infrared digestion system for 4 reaction vessels with 500 ml volume. Temperature control. Programmable rapid infrared digestion system for 4 reaction vessels with 750 ml volume. Temperature control. B B B B B InKjel 1225 TCP 41

42 Infrared rapid detection units Accessories for behr InKjel Accessories for behr InKjel Type Product description Art. No. AE 4 Fume removal equipment for InKjel 450 and InKjel 475 (M and P) B AE 6 EG 6 AE 6 Fume removal equipment for InKjel 625 (M and P) B AE 12/100 Fume removal equipment for InKjel 1210 (M and P) B AE 12 Fume removal equipment for InKjel 1225 (M and P) B EG 12/100 EG 6 EG 12 EG 4/500 EG 4/750 Insert rack for 12 digestion vessels of 100 ml in the InKjel 1210 (M and P) Insert rack for 6 digestion vessels of 250 ml in the InKjel 625 (M and P) Insert rack for 12 digestion vessels of 250 ml in the InKjel 1225 (M and P) Insert rack for 4 digestion vessels of 500 ml in the InKjel 450 (M and P) Insert rack for 4 digestion vessels of 750 ml in the InKjel 475 (M and P) B B B B B Digestion vessels for InKjel Type Product description Art. No. SR 3i Round bottom digestion vessel, 250 ml B SR 4 Round bottom digestion vessel, 100 ml for micro Kjeldahl B KJ 500 Round bottom digestion vessel, 500 ml B KJ 750 Round bottom digestion vessel, 750 ml for InKjel B SR 3i SR 4 KJ 500 KJ

43 behrotest fully equipped work stations for nitrogen determination according to Kjeldahl Based on our block or infrared digestion systems, we have put together various full configurations for users with diverse requirements. Basic system for Kjeldahl digestion and distillation: Type ASB work stations Digestion units for 6 samples (Infrared: InKjel 625 M) or 8 samples (block digestion: K 8) simultaneous. Standard digestion in vessels à 250 ml. Extraction system with water jet pump and neutralisation phase (SIMVAC). Steam distiller (S1). Type Art. No. ASB-IR Infrared with energy control B ASB-K Block digestion with temperature control B Full system for the determination of nitrogen incl. titration: Type ASM work stations Programmable digestion units for 12 samples (Infrared: InKjel 1225 P, block digestion: K 12) simultaneous. Standard digestion in vessels à 250 ml. Scrubber (behrosog). Steam distiller (S 3). Titration station (STI). Type Art. No. ASM-IR Infrared with energy control B ASM-K Block digestion with temperature control B Full system for the determination of nitrogen incl. titration: Type ASE work stations Programmable digestion units for 12 samples (Infrared: InKjel 1225 TCP with temperature control) or 20 samples (block digestion: K 20) simultaneous. Standard digestion in vessels à 250 ml. Scrubber (behrosog) with additional cooling system (ACS). Steam distiller (S 5). Type Art. No. ASE-IR Infrared with temperature control B ASE-K Block digestion with temperature control B

44 fully equipped work stations ASB-IR ASM-IR ASE-IR 44

45 behrosog 3 Scrubber Scrubber Continuously variable control of the air flow rate l/min Liquid is easy to change by simply draining the glass bottles PTFE-coated double-head diaphragm pump Integrated mist eliminator Gas-washing bottle 2000 ml for cooling hot gases Gas-washing bottle 2000 ml for neutralising Transparent safety door Removable safety collection tray On/ Off switch outside the danger zone 45

46 behrosog 3 Scrubber Scrubber The two-stage behrosog process extraction system (scrubber) pre-separator plus safety stage prevents any acid fumes whatsoever from reaching the environment. Compact process extraction system for extracting and neutralising aggressive acid fumes, especially from the Kjeldahl digestion method for nitrogen determination. An upstream two-stage pre-separator washes out the toxic substances. The process extraction system is equipped with a vacuum pump 40 l/min. There is no need to connect to the water supply. Efficient running costs Continuously variable intake flow Both cleaning stages (condensation and neutralisation stage) prevent the emission of toxic substances into the environment Optionally, the additional cooling system for the behrosog 3 ACS can be connected to the system, consisting of stand, bottles and cooler. Scrubber behrosog 3 Type Product description Art. No. behrosog 3 ACS Scrubber with suction pump (40 l/min), cooling stage, neutralisation stage and drip catcher Additional cooling system for behrosog 3, for samples with high water content B B Technical data for the behrosog 3 scrubber Voltage Frequency Power consumption Weight 230 VAC 50/60 Hz 80 W approx. 18 kg Dimensions in cm (W x D x H) approx. 38 x 34 x 40 Pump delivery rate max. 40 l/ min without backpressure behrosog 3 with ACS SIMVAC Suction device with water jet pump and neutralisation bottle incl. hose and frame. Without fittings! Type Article description Art. No. SIMVAC water jet pump based neutralisation B Air suction Water consumption 20 l/min 13 l/min 28 l/min 16 l/min SIMVAC 46

47 behr steam distillers S 1 to S 5 Customised features Exemplary safety for the steam distillation behr steam distillers are not only efficient and reliable partners in everyday laboratory life. An important issue during the development and design of the equipment was also the safety of users. Therefore, all steam distillers have: a protection switch as master switch, which automatically trips in the event of overload and short-circuit a mechanical overpressure safety valve to prevent excessive pressure in the steam generator vessel monitoring (distillation is not possible until a vessel has been inserted) a door contact switch, which automatically switches off the distiller if the door is open a resettable excess temperature thermostat (in the event of lack of water in the steam generator) cooling circuit monitoring by means of pressure switches temperature-controlled steam heating phase and pressure control via solenoid valve Steam distillers behr S series steam distillers are the optimum addition to the behr Kjeldahl digestion system. Depending on the requirements, the user can choose between five automatic steam distillers. These have identical basic designs, however, their ease of use and degree of automation differ. The top of the range unit, the behr S 5, is prepared for work with an external titrator. The Windows software supplied enables the user to bidirectionally transfer applicationspecific distillation parameters between one or several units and a PC via the USB interface. The CD includes a library with common applications. 47

48 Steam distillers Maintenance set for behrotest steam distillers The set comes with all the necessary spare parts for the working area as well as for the interior of the behrotest steam distillers. The maintenance set included are exactly those screw caps, seals, tubes and valves which are prone to wear out during everyday use in the laboratory. Type behrotest maintenance set Art. No. B User friendly design: Maintenance friendly design doors at the rear can be opened simply without tools and give access for routine maintenance work. Important tubes, valves and pumps etc. for service and maintenance work are all freely accessible. 48

49 Steam distiller S 1 with automatic addition of NaOH Exemplary safety and reliability Robust and insensitive housing made of polyurethane Distillation time approx. 3 min per sample Detection limit 0.1 mg N Retrieval rate > 99.5% Reproducibility ± 1% Adjustable steam output (40% - 100%) Particularly easy, menu-driven operation using a single control (behr single-knob control) Programmable reaction time Programmable distillation time USB interface Level monitoring for the canister set Practical quick-release clamping device, which the user can also easily operate with their left hand S 1 Type Product description Art. No. S 1 S 1 Steam distiller, semi-automated B KAS 10 Canister for S 1, consisting of canister, 20 l, B incl. minimum level sensor for NaOH Steam distiller S 2 with automatic addition of NaOH and H 2 O Exemplary safety and reliability Robust and insensitive housing made of polyurethane Distillation time approx. 3 min per sample Detection limit 0.1 mg N Retrieval rate > 99.5% Reproducibility ± 1% Adjustable steam output (40% - 100%) Particularly easy, menu-driven operation using a single control (behr single-knob control) Programmable reaction time Programmable distillation time USB interface Level monitoring for the canister set Practical quick-release clamping device, which the user can also easily operate with their left hand S 2 Type Product description Art. No. S 2 S 2 Steam distiller, semi-automated B KAS 20 Canister set for S 2, consisting of 2 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H 2 O B

50 Steam distillers Steam distiller S 3 with automatic addition of NaOH and H 2 O with automatic extraction of the sample residues and with 10 programs Exemplary safety and reliability Robust and insensitive housing made of polyurethane Distillation time approx. 3 min per sample Detection limit 0.1 mg N Retrieval rate > 99.5% Reproducibility ± 1% Adjustable steam output (40% - 100%) Particularly easy, menu-driven operation using a single control (behr single-knob control) Programmable reaction time Programmable distillation time USB interface Level monitoring for the canister set Practical quick-release clamping device, which the user can also easily operate with their left hand S 3 Type Product description Art. No. S 3 Steam distiller, semi-automated B KAS 30 Canister set for S 3, consisting of 3 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H2O and 1 canister with maximum level sensor for waste disposal B S 3 Steam distiller S 4 with automatic addition of NaOH, H 2 O and H 3 BO 3 with automatic extraction of the sample residues and with 99 programs Exemplary safety and reliability Robust and insensitive housing made of polyurethane Distillation time approx. 3 min per sample Detection limit 0.1 mg N Retrieval rate > 99.5% Reproducibility ± 1% Adjustable steam output (40% - 100%) Particularly easy, menu-driven operation using a single control (behr single-knob control) Programmable reaction time Programmable distillation time USB interface Level monitoring for the canister set Practical quick-release clamping device, which the user can also easily operate with their left hand S 4 Type Product description Art. No. S 4 Steam distiller, fully automatic B KAS 40 Canister set for S 4 and S 5, consisting of 4 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H2O, 1 canister with minimum level sensor for H3BO3 and 1 canister with maximum level sensor for waste disposal B S 4 50

51 Steam distiller S 5 with automatic addition of NaOH, H 2 O and H 3 BO 3 with automatic extraction of the sample residues, with 99 programs and a connection option for external titrator Exemplary safety and reliability Robust and insensitive housing made of polyurethane Distillation time approx. 3 min per sample Detection limit 0.1 mg N Retrieval rate > 99.5% Reproducibility ± 1% Adjustable steam output (40% - 100%) Particularly easy, menu-driven operation using a single control (behr single-knob control) Programmable reaction time Programmable distillation time USB interface Level monitoring for the canister set Practical quick-release clamping device, which the user can also easily operate with their left hand S 5 S 5 Type Product description Art. No. S 5 Steam distiller, fully automatic, prepared for external titrator (e.g. TB 2) B KAS 40 TB 2 Canister set for S 4 and S 5, consisting of 4 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H2O, 1 canister with minimum level sensor for H3BO3 and 1 canister with maximum level sensor for waste disposal Titration module for connection to the S 5 steam distilling apparatus, with Kjeldahl method and evaluation. Printer upon request B B Technical data for steam distillers S 1 S 2 S 3 S 4 S 5 Voltage Frequency 230 VAC/115 VAC 50/60 Hz Power consumption 1700 W Current consumption 9 A Cooling water consumption approx. 5 l/min Distillation time approx. 2-4 min per sample Storage container Any size required. Recommendation: behrotest KAS canister sets Interface USB Display LCD Programs Dimensions (W x H x D in cm) approx. 41 x 67.5 x 41 Weight approx. 20 kg approx. 21 kg approx. 23 kg approx. 24,5 kg approx. 29 kg Titrator connection no no no no yes 51

52 Steam distillers Features of the various units S 1 S 2 S 3 S 4 S 5 Automatic addition of H 2 O Automatic addition of NaOH Automatic addition of H 3 BO Automatic extraction of the sample residues Number of programs Titrator connection option + Programmable reaction time + Programmable distillation time + Automatic steam generation + Adjustable steam output (40% 100%) + Separate purging program + Display language selectable by user + Optical error indications + Acoustic error indications + Door safety contact switch + USB interface + Standby mode between distillations + Level monitoring for the canister set + Different glass digestion tubes can be used + 52

53 Adapter Adapter for the use of different digestion vessels Our practical adapter ensures that you can use digestion vessels by manufacturers, who deviate from standard sizes in our behrotest steam distillers. Adapter for the use of different digestion vessels Product description Art.-No. Microadapter 100 ml PTFE for Micro-Kjeldahl vessels SR4 B PP-adapter for Büchi-vessels of S 1 - S 5 B

54 Steam distillers Canister sets behr canister sets are based on hazardous goods canisters with UN approval. The level sensors form a unit with the screw caps. If necessary, the user can therefore also directly connect commercial chemical containers without any need for dangerous refilling or transfer actions. Canister sets Type Product description Art. No. KAS 10 Canister for S 1, consisting of canister, 20 l, incl. minimum level sensor for NaOH B KAS 20 KAS 30 Canister set for S 2, consisting of 2 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H 2 O Canister set for S 3, consisting of 3 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H 2 O and 1 canister with maximum level sensor for waste disposal B B Canister with level sensor for waste disposal Canister with level sensor for NaOH KAS 40 Canister set for S 4 and S 5, consisting of 4 canisters, 20 l each. 1 canister with minimum level sensor for NaOH, 1 canister with minimum level sensor for H 2 O, 1 canister with minimum level sensor for H 3 BO 3 and 1 canister with maximum level sensor for waste disposal B Manual titration station STI The STI manual titration station consists of: a burette with digital display and a magnetic stirrer with precise fitting holder for an Erlenmeyer flask A screen serves as a neutral background and enables the user to precisely determine the colour alteration at the end of the titration. This means that the titrations are always performed under similar optical conditions. This improves the accuracy and reproducibility of the results. The precise positioning of the vessel in the holder at the top of the magnetic stirrer also contributes towards this. The angular sides of the screen provide additional protection against lateral glare. STI Manual titration station STI Type Product description Art. No. STI Manual titration system for the determination of nitrogen using the Kjeldahl method B TS Tashiro mixed indicator, 1 l B Technical data for the manual titration station STI Voltage Frequency Weight 230 VAC 50/60 Hz approx. 3.5 kg Dimensions in cm (W x D x H) approx. 33 x 20 x 60 TS 54

55 Simple and secure data collation and result calculation with a PC behrotest HTI 3: the integrated collection and evaluation solution for nitrogen determination according to Kjeldahl The behrotest HTI 3 consists of analytical scales, the behrotest titration station STI 2 and collection and evaluation software behrotest KjelSoft. KjelSoft receives the data from the scales and titration station via USB-interface points, collates it and automatically calculates the nitrogen and protein content of the samples. Precise sample classification and manipulation assurance according to GLP are thus guaranteed. Export of all data in Excel format facilitates the transfer to a LIMS. For documentation there is an additional option for export in PDF format. The behrotest HTI 3 offers the user for the determination of nitrogen according to Kjeldahl: Simple collation and evaluation Manipulation assurance Precise sample identification Clear illustration of all values and results in the form of tables Simple operation User administration Product description behrotest HTI 3 Art. No. B

56 56 Kjeldahl software