Extraction

Neutral and fat free. With excellent retention capacity. Ash content <0.1 %.

• Fat determination in food and feed
• Determination of binder content in asphalt
• Analysis of soil contaminants
• Determination of additives in rubber and elastomers

Manufactured in pure cellulose according to DIN 12449.

Extraction apparatus, Soxhlet-pattern. With Dimroth condenser and round-bottom flask.
Made of Duran^® tubing.

For reliable and fast analysis in the areas of food control and environmental monitoring. Suitable for Soxhlet-type, Tecator-type or similar devices, to extract certain components out of solid material with an appropriate solvent.

• Made of pure cellulose that is totally free from binding elements
• High purity of selected cellulose guarantees reliable and replicable results
• The consistent high porosity ensures fast flow through
• High fitting accuracy for all available extraction systems
• Wall thickness 1.3 mm at thimbles with ≤35 mm inner diameter, 1.7 mm at thimbles with >35 mm inner diameter
• For two systems
• Grade 900: Soxhlet Extraction, Grade 901: Tecator Extraction

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.

They are ideally suited for:

• total crude fibre determination (part of the Weender animal feed analysis as performed in Europe)
• neutral detergent fibre and acid detergent fibre determination (NDF and ADF according to Van Soest)
• acid detergent lignin determination (ADL according to Van Soest)
• different fractions of fibre (cellulose, hemicellulose and pectin) behrotest^® semi-automatic crude fibre extraction units simplify everday life in the lab:
• Easy operation
• The analyst is guided through the procedure by messages on the display.

Workstation model SMA-ARB

The behrotest^® workstation model SMA-ARB is a basic system for simultaneous aqua regia digestion of either 6 or 12 samples for heavy metals analysis.

System components:

• Precision 6 or 12 sample SMA heating block for round-bottom sample vessels of Ø 41.8 mm, temperature range 20 to 300 °C.
• External ET 2 controller, operating range 20 to 399°C. Time settings from 10 to 120 min. and continuous operation.
• 6 or 12 SR 2 250 ml round-bottom sample vessels with standard taper mouth and PVDF collar.
• 6 or 12 RFK 1 Allihn reflux condensers.
• 6 or 12 AS 1 absorption vessels.
• SG/B stainless steel vessel holding frame for 6 or 12 sample vessels.
• Support scaffold with cooling water distributor and storage holder for 6 or 12 condensers.

Economical and user-friendly units for extraction in accordance with Twisselmann:

• each sample position is individually adjustable
• cooling water distributor ensures an even cooling at all sample positions
• practical stand for holding the condensers securely between the extractions
• mounts for holding the spacers after the removal of the sample containers

Extraction and clean-up mixtures for sample preparation in the pesticide analysis of vegetable foodstuffs according to EN 15662 using GC/MS or LC/MS after acetonitrile extraction and purification using the dispersive SPE-QuEChERS method.

The samples are first extracted with Mix A. Purification is done with one of the following mixtures:

• Mix B (Clean-up mixture for fruits and vegetables with low fat content, e.g. apples, strawberries)
• Mix C (Clean-up mixture for fruits and vegetables with high fat content, containing oil/wax, e.g. avocados)
• Mix D (Clean-up mixture for moderately chlorophyll/carotenoid-containing fruits and vegetables, e.g. carrots, salad)
• Mix E (Clean-up mixture for fruits and vegetables with high chlorophyll/carotenoid content, e.g. sweet peppers, spinach)

• Mix A contains a bag with the required amount of mixture and a 50 ml empty tube
• Mix B, C, D and E are pre-weighed into a 15 ml tube

Compact Extraction System in accordance with Twisselmann
Complete compact extraction system with stand, heating module, mount, hoses and glassware (round-bottom reaction flask, extractor, Dimroth condenser for extraction).

Complete compact extraction systems with stand, heating module, mount, hoses and glassware (round-bottom reaction flask, extractor, Dimroth condenser for extraction). Infinitely variable heating regulation.

• practical stand for holding the condensers securely between extractions
• extractor sizes from 30 ml to 5000 ml
• the use of extractors with a stopcock eliminates the need for any additional distillation after extraction
• Condensers with screwed-on tubing nipples

• Filter mountings, 400 ml, with thread
• PP funnels with thread
• Slotted sieve plate with 2 gaskets
• Stainless steel rack
• Water jet pump

• Pollution monitoring, air sampling
• High temperature filtration (up to +500 °C)
• For solvents incompatible with cellulose thimbles (for example strong acids or bases)

Recommended for Soxhlet extraction with solvents, which are incompatible with cellulose fibres and for filtration of air and gas streams.

• Made of 100 % pure borosilicate fibres, without binding elements
• High loading capacity and highly permeable to air
• Thickness is 1.5 mm (diameter < 33 mm)
• High retention of small particles, > 99 % according to BS 4400
• Good stability at high temperatures up to 500 °C
• Recommended for hot, moist, and acidic gases
• Gravimetric determination of particles in hot gases

Supplied in packs of 25. Dimensions given are nominal internal diameter x external length in mm.

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

• 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

behrotest^® Hydrolysis apparatus, complete with:

• Serial heating unit with individually adjustable heating places
• Cooling water distribution with condenser rack and hoses
• Beakers (600ml), cold fingers

behrotest^® serial heaters are the economical and user-friendly solution for the classic Soxhlet or fat extraction:

• complete with reaction vessels, extraction spacers and coolers
• energy for each sample position is individually adjustable
• cooling water distributor ensures even cooling at all sample positions
• practical stand for holding the condensers securely between extractions
• mounts for holding the extraction spacers after removing the sample vessels
• S models: The extractors with stopcock do away with the need for any additional distillation after extraction

Complete equipment for reflux distillation, consisting of

• Hot bench, 4 or 6 heating positions
• Standing basin
• Stand rods
• Cooling water distribution with condenser rack and cooler stand
• Reaction flask
• Behr high performance glass coolers

Complete equipment for reflux distillation, consisting of

• Compact frame with supporting brackets for cooler depositing and cooler holder
• Standing basin
• Reaction flask
• Behr high performance glass cooler
• Tubing

e.g. to determine the raw fibre content according to EN ISO6865

• Resistant to temperatures up to +500 °C
• Analysis of hot and acidic gases, including emission control and smoke stack gas monitoring
• Soxhlet extraction
• Analysis of pesticide residues
• Determination of oil/fat content of foods
• Analysis of oil and grease in solid wastes

Schleicher & Schuell MicroScience thimbles are the standard for reproducible analytical results. An excellent fit in the apparatus is ensured through carefully controlled dimensions. Selected raw materials ensure that the thimbles are ideal for all analytical routine processes to obtain reproducible results without influencing the sample.
For decades, thimbles from Schleicher & Schuell MicroScience have been known for their constant high quality and purity. In addition to the following standard thimbles which are ideal for Soxhlet extraction, Schleicher & Schuell MicroScience offers alternative dimensions on request.

Extraction thimbles are used for holding solid materials, from which certain substances are to be extracted with a suitable solvent. Additionally, extraction thimbles are used in the fields of air and waste gas analysis for collecting solid particles.

Extraction thimbles are used for holding solid materials, from which certain substances are to be extracted with a suitable solvent. With sealing collar and two finger recesses on opposite sides of the collar, for dust analysis in industrial gases, exhaust gases and room air.