The KONTES® DISPOSAFLEX® column is an inexpensive, multi-purpose column designed to satisfy a wide range of analytical separations using aqueous buffers. A typical application of the Disposaflex® column is the extraction of the cyclic nucleotides cAMP and cGMP from sample preparations…

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 …

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…

Three-prong extension clamps hold objects ranging from 0.80 to 89 mm securely and safely. Two separate adjustment screws ensure even, precise pressure on glass to minimize the chance of breakage Clamp is easily adjusted to vary holding angle and distance from the stand Jaws are coated…

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…

Useful for refluxing and distillation assemblies. The narrow annular space of the West design provides high cooling efficiency due to the increased flow rate of the cooling medium Medium length Standard Taper joints Condensate is not restricted with this design Manufactured from…

Aluminum construction to connect tops to flasks Wing nuts or thumb screws are spaced to assure uniform compression for sealing the system

Similar to 3432N01 series, but with PTFE pestle and an unground glass tube Ideal for soft tissue such as brain or liver Clearance between pestles and tubes is .004 to .006 inches* Pestle can be motor driven (see Thomas number 3411E25 for Drive Unit). Available in working…

Similar to 3432N40 series, but with PTFE pestle and an unground glass tube Ideal for soft tissues Clearance between pestles and tubes is .004 to .006 inches* Pestle can be motor driven (see Thomas number 3411E25 for Drive Unit) Available in working capacities of 0.5, 1, 3, 5, 8,…

For gravimetric oil and grease Three position linear system Heating mantle, controller and splash guard are required for complete system (clamps and support included): power 15 amps - 115 volts. Refrigerating circulator recommended for system water coolant: -4°C. Proper ventilation…

Developed in the laboratories of Julius Hyman and Company for the concentration of trace amounts of sample dissolved in organic solvents. It is very useful in sample preparation before analysis with solvents such as petroleum ether or hexane. Preparation involves filling the flask to between…

Used for dispensing a fixed volume of liquid into vessels with small openings. 675300 polyacetal Standard Taper clamp (one included) secures flask and head All-glass apparatus manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type…

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…

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…

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…

FLEX-COLUMNS® are economical and easy-to-use. Short columns are typically used for ion exchange chromatography, sample desalting and semi-disposable applications, while the long columns are ideally suited for gel filtration and adsorption chromatography. Constructed of polypropylene…

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

Made of autoclavable CTFE/Stainless Steel Optional cordless drive unit available, see Thomas number 3411E25.

Lower column fitting with a luer outlet for Disposaflex™ Chromatography Columns. Luer tip only Standard taper joint: 14/20

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…

Extractor body only, used as component part of 585050 Soxhlet extraction assemblies. Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Gravity chromatography column manufactured from medium wall tubing with 821000 PTFE stopcock Similar in design to the 420530 series 40-60 micron porosity glass frit at the lower end to act as a support for column packing material Replacement stopcock plug is 821001 Manufactured from 33…

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…

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…

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…

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…

Standard Taper outer joint at the top Standard Taper inner drip joint at the bottom Hose connections accept 3/8” ID flexible tubing Ref: ASTM Method D322 Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type I and ASTM E438, Type I, Class A requirements

Friedrich Condenser with hose connection sidearm. 45/50 bottom standard taper joint Ring-sealed inner condensing tube with inner drip joint and side outlet for drying tube Molded 190 mm inner cold finger Used primarily in reflux mode and Soxhlet extractions Fits tubing ID 3/8"

Ideal for use in place of a sand bath in microscale experiments. Excellent heat transfer Does not interfere with magnetic stirring

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…