Ideal for use with gel filtration, ion exchange, affinity and adsorption media Economical Easy to use Universal fittings and tubing connections Ideal for use with gel filtration, ion exchange, affinity and adsorption media. Polypropylene reservoirs and column outlets are permanently…

Snyder distillation column with floating ball valves for improved vapor-liquid contact. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements.

Angled two neck round bottom flask. Two-neck heavy wall flask with 24/40 Standard Taper outer joints Side neck is angled Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

This apparatus combines two analytical techniques, Soxhlet extraction and Dean-Stark azeotropic distillation, into a single process for the removal of water, chlorinated dibenzo-p-dioxins (CCDs) and chlorinated dibenzofurans (CDFs) from wet particulate samples. Determination of water and…

Resuspend protein and DNA pellets or grind soft tissues in micro centrifuge tubes Pestles are made of autoclavable blue polypropylene Pestles specially designed to match microtubes Optional cordless drive unit available , see Thomas number 3411E25 .

For ASTM D 97, D 2500 Cylindrical with flat bottom, beaded rim and marking spot Height 125 mm; o.d. 35 mm With graduation ring 54 mm from bottom

With Standard Taper Joints Complete with Allihn condenser with joint at bottom, Soxhlet extraction tube with top and bottom joint and flat-bottom flask Available in small, medium and large capacities Small Extractor with 125 mL flask (4406E10, E16, E22) Extraction chamber 30 mm i.d. x 95…

This closed system tissue homogenizer (tube with pestle) is non-sterile and packaged in a bulk pack configuration.

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Three Hole Cap Systems Borosilicate glass and PTFE construction Excellent chemical resistance to most HPLC mobile phases Cap body is manufactured from PTFE and is supplied with a TFE/ propylene O-ring. Connecting threads on top and bottom of the cap use 1/4-28 fittings. Supplied flangeless…

The Kuderna-Danish apparatus was developed in the laboratories of Julius Hyman and Company for the concentration of trace amounts of sample dissolved in organic solvents. The column is designed to speed evaporation with reduced hold-up. It is very useful in sample preparation before analysis with…

Ammonia/Phenols and Cyanide Models Available Corrosion resistant PTFE-coated glass 30" x 14.25" footprint Overtemp protection switch Automatic shutoff MIDI-VAP 4000 Systems feature a pre-programmed digital controller with automated shut-off when reaction time is completed. They…

Has separate reflux overflow tube Graduated in 1/10 ml divisions from 0 to 1 mL; in 1/5 mL divisions from 1 to 10 mL With 24/40 joints; meets ASTM Standard E 123 Specialized for determination of water in emulsified asphalts With Standard Taper24/40 joints and reflux overflow…

A convenient stainless steel universal joint with 5/16 inch OD shaft and polyacetal adapter connects stirrer shafts to stirrer motors. Flexible design allows connection even if alignment is not precise. Stirrer Adapter, Flex-Shaft. For 8-10 mm Shafts

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Re-suspend protein and DNA pellets or grind soft tissues in micro centrifuge tubes Pestles can be hand operated or motor driven Autoclavable types available Ideal for cell and tissue culture preparation Choose the best pellet pestle for your applications RNase-, DNase- and Pyrogen-free …

Solvent bottle adapter Economy three-hole cap Inlet/sparge filter Safety system 3 combines a three-hole cap, solvent bottle adapter and a combination inlet/sparge filter to eliminate the safety hazards of aluminum foil wrapped solvent containers. Solvent bottle adapter converts GL-45…

Excellent for storage of hygroscopic chemicals, and to prevent adsorption of moisture when using crucibles, weighing bottles, and watch glasses. Plastic screw-thread top cap for easy cover removal Recessed base for containment of desiccant Includes metal plate Manufactured from…

Without stopcock 5579M10 Buret is graduated from 0.5 to 50 mL in 0.1 mL divisions, tolerance ±0.10 mL.

Apparatus is for determining the proteinaceous nitrogen content in water. It is also useful for preparing small quantities of distilled water. Apparatus can be used for phenol, selenium and fluoride determinations. It has 24/40 Standard Taper joint and a #2 hose connection. Unit measures 595 mm H x…

Economy Three Hole Cap Systems Economical way to helium sparge and deliver mobile phases Cap body is manufactured from PTFE and is supplied with a TFE/propylene O-ring and a polypropylene screw collar. The connecting threads on the top of the cap use standard 1/4-28 flangeless fittings. Two of…

Choice of coarse or extra coarse porosity cylinder Gas dispersion tube has a hollow fritted cylinder at the end of the tube. Cylinder height x o.d.: 24 x 13 mm. stem diameter: 8 mm. Overall height: 250 mm

Flow adapters Flow adapters can significantly improve FLEX-COLUMN® performance by protecting the gel bed from disruption during sample loading and by eliminating any dead volume above the gel bed.  Ideal for concentration and pH gradients, reverse flow separations and gravity…

The Kuderna-Danish apparatus was developed in the laboratories of Julius Hyman and Company for the concentration of trace amounts of sample dissolved in organic solvents. The column is designed to speed evaporation with reduced hold-up. It is very useful in sample preparation before analysis with…

Columns are supplied complete with glass barrel, 2 end fittings with 20 μm porosity HDPE bed supports, and screw caps Each column is also supplied with 5 feet (1.5 m) of FEP PTFE tubing (1/16” OD with 1.0 cm; 1/8” OD with 2.5 and 4.8 cm), 2 flangeless tubing nuts and 2 flangeless…

Selected to give the best fit to Pellet Pestles, Thomas 3411D75 series Constructed of autoclavable polypropylene Available in blue or natural color

Tightly wound coil provides enough surface area to condense high vapor pressure solvents like hexane. With an internal, coil-type cold finger Standard Taper outer joint at the top, Standard Taper inner drip joint at the bottom 283000 does not have a drip joint Two hose connectors…

For connecting inert gas and vacuum sources Stopcock has metering groove cut into the plug to provide fine control of vacuum and inert gases. Distance between stopcocks is 65 mm for 8651N01 and 100 mm for 8651N03. Include patented pressure/vacuum retainers. Dimensions (mm): 8651N01: 230 L x…

For use with hybridization incubators with rotors Reduced probe volumes Perform Northern, Southern or Western blots Include caps with silicone O-rings Tubes provide a cleaner and safer alternative to hybridizing in bags. Use only approximately 5 mL of probe per blot. Multiple…