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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…

  • NORM-JECT Plastic Syringes

    Restek

    NORM-JECT syringes are latex-free, contain no rubber, no silicone oil, styrene or DEHP and are DNA-free. These syringes are the choice for any situation needing an inert, nonreactive syringe. Because of their composition, they are ideal for chromatography and many other laboratory procedures. They…

  • 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.*…

  • 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

  • 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.

  • 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…

  • Nylon Tube Brushes and Pipe Cleaner

    Restek

    Use to remove small septum fragments and residue from dirty glass inlet liners. Brushes are 1/8-, 3/16-, and 1/4-inch in diameter; pipe cleaner is one foot (30 cm) long.

  • 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…

  • Rtx-5 (G27) Columns (fused silica)

    Restek

    low-polarity phase; Crossbond diphenyl dimethyl polysiloxane The diphenyl dimethyl polysiloxane stationary phase is the most popular GC stationary phase and is used in a wide variety of applications. All residual catalysts and low molecular weight fragments are removed from the Rtx-5 polymer,…

  • 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…

  • 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.

  • Capillary Ferrules for 1/16" Compression-Type Fittings

    Restek

    Available in Vespel, graphite, or Vespel/graphite material. Vespel Ferrules 100% high-temperature polyimide Stable to 350°C Durable, leak-tight Graphite Ferrules Preconditioned to eliminate outgassing High-purity, high-density graphite Smoother surface and…

  • 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

  • Universal Sealing Mats

    Restek

    Protect contents and prevent carryover with pre-slit cap mats Chemically resistant, silicone mats are excellent for compound storage to -80°C Pre-slit mats pierceable by autosampler needle, pipette tip, or probe Universal mat for sealing 0.45, 1.3, and 2.0 mL plates

  • 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).

  • 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.

  • Q-sep Bottle Top Solvent Dispenser

    Restek

    Accurately and precisely dispense liquids for QuEChERS extractions with this versatile pump. A quick, simple adjustment lets you set the output volume anywhere from 2.5 mL to 30 mL per stroke, and the included adaptors will accommodate most reagent bottles. Adjustment knob offers 56 output…

  • 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,…

  • 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…

  • Hub-Cap Adaptors

    Restek

    Allow the use of the Opti-Cap Top with 4-liter solvent bottles.

  • Acrolein

    Restek

    Compound List Acrolein (107-02-8) This product has a limited shelf life. We recommend that you order only the ampul quantity that meets your immediate needs. NOTE: Store standards under frozen conditions (0°C or colder). We recommend you store ampuls lying flat (horizontally) to…

  • Multi-Layer Foil Gas Sampling Bags

    Restek

    Sampling bags are a low-cost whole air sampling device for high level VOCs and permanent gases. Several EPA, NIOSH, and OSHA methods exist for bag sampling for a variety of applications: stationary sources emissions; workplace atmospheres; ambient, indoor air quality; and breath analysis. Choose…

  • Parker Balston PEM Hydrogen Generators

    Restek

    Fuel-grade high purity hydrogen generators are safer alternatives to high-pressure gas cylinders. The new Proton Exchange Membrane (PEM) cell eliminates the use of liquid electrolytes with hydrogen generators. Deionized water is all that is required to generate hydrogen for weeks of continuous…

  • Ashcroft Test Gauges

    Restek

    High-accuracy test gauges are recommended for verifying the vacuum/pressure in canisters before and after sampling. The 6-inch face on the analog gauge allows for easy reading. The digital gauge operates on two AAA batteries and offers an unambiguous readout. Both gauges have an accuracy of +/–…

  • Extraction Cell Caps & Replacement Parts for ASE Systems

    Restek

    Accelerated solvent extraction is a common technique for fast and reliable extraction of organic materials from solid matrices, using EPA SW-846 Method 3545, Pressurized Fluid Extraction (PFE). Restek offers a wide range of replacement parts to keep your extraction system running smoothly. All…

  • Straight Seamless 316L Grade Stainless Steel Tubing (Treated)

    Restek

    Treated Straight, 6-Foot Length Stainless Steel Tubing Individual 6-foot (± 1/2") straight pieces. In response to customer requests, we offer 6-foot straight lengths of 1/8-, 1/4, and 3/8-inch treated tubing. This tubing can be cut to your exact requirements using a standard tubing cutter.

  • 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…

  • Sample Cylinders, High Pressure

    Restek

    Swagelok sample cylinders are made of 304L and 316L stainless steel to resist corrosion and DOT rated to 1,800 and 5,000 psig (TPED cylinders rated to 1,450 and 4,350 psig), which allows sampling at gas wellheads as well as on-site refineries. Each cylinder is hydrostatically tested to at least 5/3…

  • Coiled 316L Grade Stainless Steel Tubing (Treated)

    Restek

    Treated Seamless 316L Grade Stainless Steel Tubing High durability tubing. Recommended for: Inert applications High temperatures High pressures Corrosive environments Zero bleed

  • Indicating Oxygen Trap

    Restek

    Indicator changes from light green to grey as oxygen is trapped Heavy-walled glass body, protected by polycarbonate sleeve, prevents oxygen and water infusion Prepurged for fast stabilization 100 psi (689 kPa) maximum operating pressure Reduces oxygen to 0.1 ppm 10 µm frits at…

  • Rxi-624Sil MS Columns (fused silica)

    Restek

    midpolarity Crossbond phase 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 combination of column…

  • Rtx-1 Columns (fused silica)

    Restek

    nonpolar phase; Crossbond dimethyl polysiloxane General-purpose columns for solvent impurities, PCB congeners (e.g., Aroclor mixes), simulated distillation, arson accelerants, gases, natural gas odorants, sulfur compounds, essential oils, hydrocarbons, semivolatiles, pesticides, oxygenates. …

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