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  • Rocker Vacuum Pumps

    Restek

    Oil-free vacuum pumps are piston powered, so they do not pollute the air and require minimal maintenance Quiet, low-vibration units keep disturbances to a minimum Built-in thermal protector automatically shuts off pump if it overheats and then restarts it once the unit is cool Inlet filter…

  • Opti-Cap GL-45 Bottle Tops

    Restek

    The most economical way to helium-sparge and deliver LC mobile phases. Opti-Cap tops fit all standard GL-45 bottles and have two 1/8" holes and one 1/16" hole for tubing. All three openings are designed for threaded PEEK plugs.

  • Q-sep 3000 Centrifuge for QuEChERS

    Restek

    Priced to fit your laboratory's budget, the Q-sep 3000 centrifuge is the first centrifuge specifically designed for QuEChERS methodology. This compact, quiet, yet powerful unit spins at the 3,000 g force required by the European method. Centrifuge includes 50mL tube carriers (six), 50mL…

  • Syringe Filters with Luer Lock Inlet

    Restek

    Luer lock inlet offers leak-tight syringe connection Variety of filter types, porosities, and diameters Color coded for easy identification Rugged polypropylene housing Autoclavable to 121°C for 15 minutes Quantity break pricing for greater savings Cellulose Acetate, Nylon,…

  • 1/16" Tubing Cutter

    Restek

    Produces square, smooth cuts in 1/16-inch tubing Eliminates tubing distortion Cuts hard or soft copper, aluminum, brass, stainless steel, Monel alloy, or titanium Replaceable cutting wheel

  • Eco-Cap Bottle Top, ETFE

    Restek

    Fits all standard GL-45 bottles; has two 1/8-inch holes and one 1/16-inch hole for tubing. Holes are not threaded.

  • Resprep 12- or 24-Port SPE Manifolds

    Restek

    Use with any standard male luer end SPE cartridges Inert, PTFE sample guides reduce cross-contamination and carryover Flexible sample collection rack will accommodate a variety of receiving vessels Quick vacuum-release valve for better system control Individual valves allow vacuum…

  • 1/16" Stainless Steel Ferrule

    Restek

  • Parker Balston H2PEMPD Hydrogen Generators

    Restek

    Proton exchange membrane (PEM) cell eliminates the need for liquid electrolytes. Maintenance-free palladium purifier removes oxygen to <0.01 ppm and moisture to <1.0 ppm. Produces continuous supply of 99.99999+% pure hydrogen gas. Does not require downstream gas filters. Maximum…

  • Indicating Moisture Trap

    Restek

    Reduces water to less than 10 ppb; indicator changes from yellowish-green to blue at 5% relative humidity Prepurged for fast stabilization Reduces noise from high-sensitivity detectors Heavy-walled glass body prevents oxygen and water infusion 10 µm frit prevents microparticulate…

  • Vial Rack for Headspace Vials

    Restek

    Securely holds up to 36 headspace vials (fits 6, 10, or 20 mL vials). Vials lock in rack for convenient one-handed cap removal. Openings in the bottom of each well facilitate drainage. Alphanumeric indexing on rack simplifies sample identification. Easy to clean and fully autoclavable.*…

  • Force™ C18 LC Columns (USP L1)

    Restek

    A traditional end-capped C18 ideal for general-purpose use in reversed-phase chromatography Wide pH range (2–8) provides excellent data quality for many applications, matrices, and compounds Offers high hydrophobic retention Similar Phase(s): Discovery C18, Symmetry C18, Hypersil…

  • Rxi-5ms Columns (fused silica)

    Restek

    low-polarity phase; Crossbond diphenyl dimethyl polysiloxane Rxi fused silica capillary GC columns were designed specifically to be the best columns available, for exceptional inertness, ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance, this…

  • Capillary Stainless Steel Tubing Assemblies for Agilent HPLC Systems

    Restek

    Precut, micropolished tubing and preseated fittings for quick, easy maintenance of your Agilent HPLC systems Meet or exceed manufacturer's performance.

  • LC Stainless Steel Capillary Tubing

    Restek

    Whether you need to replace system tubing as part of your troubleshooting or want to reduce the dwell volume of your system as you move to narrower columns, Restek has the quality tubing in the lengths and IDs you need. Each ID is color coded, so it is easy to identify and replace correctly. Tubing…

  • Carrier Basket for ASE Cells

    Restek

    Sturdy stainless steel construction to carry full or empty ASE cells and caps Can hold twelve complete 33 mL cell assemblies and more of smaller sizes

  • Waste Overflow Indicator for LC Systems

    Restek

    The Restek waste overflow indicator will help keep your mobile phase waste where it belongs—in the waste container! Compact, battery-operated unit fits securely on solvent bottles and accommodates two waste streams. An audible alarm is given as the solvent waste container approaches capacity,…

  • Restek ProFLOW 6000 Electronic Flowmeter

    Restek

    Flowmeters that can measure flammable gases are becoming mandatory due to the increased use of hydrogen in chromatography. With its Ex rating, the Restek ProFLOW 6000 meter is designed specifically with explosive and flammable gases in mind. The Restek ProFLOW 6000 is the only flowmeter you need…

  • Soap Film Bubble Flowmeter

    Restek

    1mL flowmeter for flows between 0.1 and 10 cc/min 50mL flowmeter for flows between 10 and 300 cc/min Includes a reservoir bulb, twenty-four inches (60 cm) of 1/4-inch ID tubing, adaptor tubes for 1/8-inch tubing and 0.53 mm ID capillary columns, and Velcro fasteners

  • Coiled Welded/Drawn 304 Grade Stainless Steel Tubing (Sulfinert Treated)

    Restek

    Our most popular grade of tubing. Recommended for: Chromatography applications Gas delivery systems Lower pressures Inert applications Maximum temperature of 450°C in an inert atmosphere.

  • Resprep Sample Delivery System

    Restek

    Use the Resprep sample delivery system to transfer large volumes of low viscosity samples directly from a bottle to a solid phase extraction cartridge, or to a disk on a vacuum manifold system for extraction or cleanup. Each unit consists of six transfer lines with a stainless steel weight on one…

  • 2.0mL Sample Vial Racks

    Restek

    Racks feature alphanumeric indexing for easier vial identification. Racks can be stacked for efficient storage. Fits most 2.0 mL, 12 x 32 mm vials (vials sold separately).

  • Rtx-1701 Columns (fused silica)

    Restek

    midpolarity Crossbond phase Rtx-1701 is one of the more popular stationary phases used in capillary GC. The mix of cyano and phenyl functional groups increases the polarity and offers a different elution order relative to less polar Rtx-1 or Rtx-5 columns. An Rtx-1701 column is ideal for…

  • GC Oven Thermometer

    Restek

    Verify GC oven temperature Quick measurements via sensor in the measuring tip Swivel head can turn 180° Wide measuring range: -50°C to +350°C.

  • Clean-Cut Tubing Cutter

    Restek

    Burr-free, perpendicular cuts that will not distort the tubing OD or close the ID Use on PEEK, PTFE, Tefzel, and other polymeric tubing

  • Integrated Passive Air Sampling Kits

    Restek

    Restek's passive air sampling kit incorporates all the hardware necessary to collect air samples and is easy to assemble for field sampling.* The improved filter design greatly reduces the number of potential leak sites. The passive air sampling kit is available in seven sampling flow ranges and…

  • Motor Oil Composite Standard

    Restek

    Prepared from an equal-volume blend of 5W30, 10W30, 10W40, and 20W50 motor oils. After blending, a precisely weighed amount of the composite is added to a volumetric flask to produce the standard CAS #: 64742-47-8 Conc. in Solvent and Volume: 50,000 μg/mL in methylene chloride, 1 mL/ampul

  • Replacement Combination Vacuum/Pressure Gauges

    Restek

    2-inch vacuum/pressure gauges, 316 stainless steel with 1/8" NPT fitting and center back mount. Recommended for use with canisters.

  • Stx-CLPesticides Columns (fused silica with Siltek deactivation)

    Restek

    proprietary Crossbond phase Many laboratories analyzing organochlorine pesticides struggle with breakdown and adsorption of endrin, DDT, and methoxychlor caused by active sites throughout the analytical system. Siltek passivation technology enables these columns to offer unsurpassed inertness…

  • 508.1 GC Degradation Check Mix (2 components)

    Restek

    Compound List 4,4'-DDT (50-29-3) Endrin (72-20-8) Conc. in Solvent and Volume: 100 µg/mL each in ethyl acetate, 1 mL/ampul

  • Ottawa Sand (Bulk Adsorbent)

    Restek

    Ottawa sand is listed in several U.S. EPA methods as the specified medium for matrix spike and laboratory control blanks. Sample medium for matrix spikes and laboratory control blanks Packaged in convenient 5 kg buckets

  • Stabilwax-DA Columns (fused silica)

    Restek

    polar phase; Crossbond acid-deactivated Carbowax polyethylene glycol—for acidic compounds Stabilwax-DA bonded polyethylene glycol has an acidic functionality incorporated into the polymer structure. This permits analysis of acidic compounds without derivatization, significantly reduces…

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