Kontes

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  • Ultra-Ware All-Glass Microfiltration Apparatus

    DWK Life Sciences (Kimble)

    Designed to help prevent contamination during use Recommended for routine filtration analysis of corrosive liquids and the removal of particulates from HPLC solvents Replaceable supports available Filter size: 47 mm; 3/8” hose connection A ground joint connection eliminates…

  • Cordless Drive Unit For Pellet Pestles

    DWK Life Sciences (Kimble)

    For all Kontes pellet pestle mixers Compact, hand-held unit Motor driven Comes complete with two “AA” batteries. Dimensions: 3” Dia. x 6” L.

  • Double Vacuum/Gas Manifolds With PTFE Valves

    DWK Life Sciences (Kimble)

    For connecting inert gas and vacuum sources Grease-free, fine control is provided by 4 mm PTFE HI-VAC® valves. Sample contacts only PTFE and borosilicate glass. Beams are 1/2” (12.7 mm) O.D. with upper left and lower right ends open. Delivery ports are 9 mm O.D and the distance…

  • Dounce Tissue Grinder With Glass Pestle

    DWK Life Sciences (Kimble)

    Produces a relatively coarse homogenate For cellular work where the nucleus remains intact after homogenization All glass construction Two pestles are supplied with each unit: a large, clearance pestle for the initial sample reduction and a small, clearance pestle to form the…

  • Plug-Type Rubber Sleeve Stoppers

    DWK Life Sciences (Kimble)

    Uses include outgassing NMR tubes, pressure venting or adding reactants via syringe. Hollow, plug-type stopper fits into the neck of the glassware apparatus Sleeve extension fits over the neck for a secure seal Diaphragm can be punctured with a syringe needle Series 774261 may be…

  • Stopper Top Pk144

    DWK Life Sciences (Kimble)

    Top Stoppers for Incubation Flasks. Rubber stoppers for flask top and sidearm provide a secure double seal Top stopper has off-center hole for insertion of center well Fits both 10 and 25 mL flasks

  • Valve High Vac PTFE Sz 8

    DWK Life Sciences (Kimble)

    This straight high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr. Designed with a precision external thread for fine control Can be used as a bleed up to 1/2 turn Full open position is at 1-1/2 turns Primary seal is made with a FKM o-ring on a tapered seat …

  • Chx Column Comp 30 X 2.5cm

    DWK Life Sciences (Kimble)

    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…

  • Cyanide Distillation Apparatus

    DWK Life Sciences (Kimble)

    Midi- designed for 50 mL or less of aqueous samples where concentrations have exceeded calibration standards • Purge tube capacity: 50 mL For removing interfering substances in quantitative analysis of various industrial waste waters, saline and reagent grade water. Cyanide is released as…

  • Center Well Pk144

    DWK Life Sciences (Kimble)

    Used for metabolic studies of biological materials. Particularly useful in measuring C14O2 yields following incubation. Also suitable for in vitro incubations, insulin bio-assays, persulfate oxidations, and the “distillation” of any volatile acid or base. Since either an acid or…

  • Potter-Elvehjem Tissue Grinder With PTFE Pestle

    DWK Life Sciences (Kimble)

    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,…

  • KONTES® Non-Vortexing Separatory Funnels

    DWK Life Sciences (Kimble)

    These separatory funnels prevent the vortexing of liquids during phase separation. The funnels are designed with an internal baffle plate to divert the liquids being separated from vortexing and then remixing The funnels are supplied with PTFE stopcocks and Standard Taper 29/42 center…

  • TLC Reagent Sprayers

    DWK Life Sciences (Kimble)

    Provides a uniform spray mist of visualization reagents for both thin layer and paper chromatography Borosilicate glass Handles all standard TLC spray reagents and most corrosive liquids Creates consistent spray patterns that are free of damaging droplets The connection between the sprayer…

  • KONTES® Squibb Separatory Funnels with Glass Stopcocks

    DWK Life Sciences (Kimble)

    Squibb-type with Standard Taper joint and stopcock Plain stem, but may be used with a 179800 adapter. Note stem diameter for a proper fit when using this adapter Replacement stoppers are 850100 series 636010 series is supplied without a stopper Plug is 801001 Manufactured from 33…

  • Squibb Separatory Funnels

    DWK Life Sciences (Kimble)

    Squibb-type with Standard Taper joint and stopcock Plain stem, but may be used with 179800 adapter. (Note stem diameter for a proper fit when using this adapter.) 636031 series is supplied without a stopper 636030 series is supplied with a glass stopper With an 821001 1:5 taper PTFE…

  • Sidearm Flask 10ml

    DWK Life Sciences (Kimble)

    Used for metabolic studies of biological materials. Particularly useful in measuring C 14 O 2 yields following incubation. Also suitable for in vitro incubations, insulin bio-assays, persulfate oxidations, and the “distillation” of any volatile acid or base. …

  • NMR Funnel Polypro 200mm

    DWK Life Sciences (Kimble)

    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…

  • Sparger Fritted 5ml 3/4"

    DWK Life Sciences (Kimble)

    These U-shaped spargers are specially designed for use with Teledyne Tekmar 2000 and 3000 Purge and Trap Concentrators and with the 2016 and 2032 Autosamplers. Fritted spargers are recommended for potable water and wastewater samples Fritless spargers are recommended for water, soils,…

  • Sparger Fritted 25ml 18mm

    DWK Life Sciences (Kimble)

    These U-shaped frittted spargers are designed for use with O-I Analytical Purge and Trap Sample Concentrators. 25 mL U-Shaped Fritted Sparger for use with O-I Analytical Purge and Trap Sample Concentrators Fritted spargers are recommended for potable water and wastewater samples. …

  • Sparger Fritless 25ml 1/2"

    DWK Life Sciences (Kimble)

    These U-shaped spargers are specially designed for use with Teledyne Tekmar 2000 and 3000 Purge and Trap Concentrators and with the 2016 and 2032 Autosamplers. 25 mL Fritless Sparger (2000/3000) with 1/2" mount Fritted spargers are recommended for potable water and wastewater samples…

  • Adapter Std 265

    DWK Life Sciences (Kimble)

    For enlarging the size of Standard Taper glass joints. Outer joint is at the top, inner at the bottom Manufactured from 33 expansion, low extractable borosilicate glass conforming to USP Type 1 and ASTM E438, Type 1, Class A requirements

  • Evap Concentrator 500ml

    DWK Life Sciences (Kimble)

    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 40…

  • Condenser Size 22

    DWK Life Sciences (Kimble)

    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…

  • NMR Tube 10mm 7" Grade 3

    DWK Life Sciences (Kimble)

    Our KIMAX®-HQ NMR tubes are our highest quality NMR tubes and are 100% gauged for wall thickness, concentricity and camber specifications. Polyethylene caps attached OD 10 mm (+0.00/-0.013) mm ID 9.065 (+0.013/+0.00) mm Wall thickness 0.462 mm Manufactured from 33 expansion,…

  • Sparger Fritted 5ml 18mm

    DWK Life Sciences (Kimble)

    These U-shaped frittted spargers are designed for use with O-I Analytical Purge and Trap Sample Concentrators. Fritted spargers are recommended for potable water and wastewater samples. 5 mL U-Shaped Fritted Sparger for use with O-I Analytical Purge and Trap Sample Concentrators …

  • NMR Tubes and Caps

    DWK Life Sciences (Kimble)

  • Adapter Univ Sz 21 24/40

    DWK Life Sciences (Kimble)

    For use with plain thermometers, pipets, syringes or other small items with an OD from 2 to 17 mm. A vacuum-tight seal is created with the open top compression cap and FKM o-ring to allow adjustable immersion of thermometers Cap is suitable for use to 150 °C To use it as a septum…

  • Adapter Univ Sz 21 29/42

    DWK Life Sciences (Kimble)

    For use with plain thermometers, pipets, syringes or other small items with an OD from 2 to 17 mm. A vacuum-tight seal is created with the open top compression cap and FKM o-ring to allow adjustable immersion of thermometers Cap is suitable for use to 150 °C To use it as a septum…

  • Chx Column Comp 30 X 4.8cm

    DWK Life Sciences (Kimble)

    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…

  • KONTES/GUTH Unitized® Wash Bottles

    DWK Life Sciences (Kimble)

    KONTES/GUTH Unitized® Wash bottles allow you to automatically pump a continuous, forceful jet of washing or rinsing liquid that may be instantly stopped as needed. Easy one-handed operation (either hand), leaving the other hand free for other needs Crystal clear glass flask permits…

  • Liner Solvent Recovery System

    DWK Life Sciences (Kimble)

    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…

  • Stopper Sidearm Pk144

    DWK Life Sciences (Kimble)

    ·          Since either an acid or alkali is introduced at the end of the reaction, it is possible to use this easy system with either a phosphate or bicarbonate buffer ·          The…

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