Sample Preparation, Chromatography

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Sample Preparation, Chromatography

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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…

  • 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,…

  • 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

  • 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…

  • Florisil PR (Bulk Adsorbent)

    Restek

    Florisil PR is commonly used to remove polar interferences from pesticide residues. This bulk material is ideal for labs packing their own extraction cartridges for pesticide residue extractions. Pesticide residue grade Packaged in glass containers

  • 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…

  • 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 +/–…

  • Q-sep QuEChERS dSPE Tubes for Extract Cleanup

    Restek

    QuEChERS methods are fast, easy, and cost-effective, and Restek Q-sep products make QuEChERS procedures even simpler. All extraction salts, sorbents, and sample tubes are included—no specialized equipment or glassware is required. Prepare samples more efficiently with a complete line of…

  • ALTEF 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…

  • Empty Thermal Desorption Tubes

    Restek

    High-quality thermal desorption tubes are suitable for ppt to ppm concentrations of volatile organic compounds (VOCs) in ambient, indoor, personal, and industrial hygiene environments. Fit Markes (ULTRA and UNITY), PerkinElmer, and Shimadzu thermal desorbers. Packed tubes come with a report…

  • Celite 545 Particle Size 0.02-0.1 mm

    MilliporeSigma

    CAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3

  • Tedlar 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…

  • Small Cylinder Stand

    Restek

    This cylinder stand is designed to support small-diameter cylinders, such as 104L and 110L disposable cylinders. It is a simple, safe, and economical way to stabilize the position of small cylinders, while keeping them within close proximity. The stand is constructed of heavyweight painted steel…

  • 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…

  • TO-Can Air Sampling Canisters with RAVE Valve

    Restek

    Optimized for Methods TO-14A, TO-15, IP-1A, ASTM D5466, OSHA PV 2120, and NJ DEP Low Level TO-15 Proprietary electropolished surface maintains compound stability. High-quality, metal-to-metal seal, 2/3-turn valve with stainless steel diaphragms prevent sample adsorption for more-accurate…

  • Humidification Chamber

    Restek

    When cleaning SilcoCan or TO-Can canisters, it is important to use humidified air or nitrogen to help remove volatile organic contaminants. Restek's humidification chamber is made of acrylic and withstands pressure up to 90 psi. The 1/4-inch inlet and outlet compression fittings allow easy…

  • 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…

  • Oil-Free Vacuum/Pressure Station for 12-Port Resprep SPE Systems

    Restek

    Allows switching from pressure to vacuum in a matter of seconds. Quiet, oil-free unit will not contaminate the extraction system or your samples. Provides 20" Hg (68 kPa) vacuum or 18 psi (124 kPa) pressure. Not recommended for use with 24-port manifold. Warranty period is one year from…

  • Vacuum Gauges

    Restek

    High-quality vacuum gauges with 316 stainless steel wetted surfaces. –30" Hg to 0" Hg. Recommended for use with passive sampling kits. All are rear mount.

  • Air Canister Tripod

    Restek

    Restek’s air canister tripod holds two canisters simultaneously for collocated ambient air sampling. The custom-designed bracket holds most 1, 3, and 6L canisters* securely without any tools. Lightweight (12 lb) and compact for easy storage and transport Extends from 6' to 9'…

  • Luer Lock Valve Adaptors

    Restek

    Use a luer lock valve adaptor to connect a luer lock fitting to a Rheodyne or Valco valve.

  • Ultra-High Pressure Sample Cylinders

    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…

  • Raw Polyurethane Foam (PUF) Plugs

    Restek

    Unwashed PUF plugs for both low-volume and high-volume sampling Flame retardant free—making them easier to clean for trace analysis Compliant with EPA and ASTM methods—0.022 g/cm 3 density Glass holders sold separately

  • Restek PAL SPME Fibers

    Restek

    Suitable for a wide range of analyte chemistries and sample matrices Reliable performance meets or exceeds other brands Robust aluminum hub is more durable than plastic Optimized for PAL system autosamplers and compatible with most GC inlets SPME automated sample preparation reduces…

  • Model 1062 Vacuum Bag Sampler

    Restek

    The model 1062 vacuum bag sampler provides fast sampling with zero cross-contamination. A vacuum created in the box draws air into the sampling bag without drawing it through the vacuum pump first, as is the case with standard air sampling pumps, thereby preventing contamination of the sample. This…

  • Replacement Parts for Resprep SPE Manifolds

    Restek

  • Q-sep Tube Racks

    Restek

    Available for 2 mL, 15 mL, and 50 mL tubes Alphanumerical grid reference on top tier for easy identification of samples Easy to assemble; simply fold and snap together securely

  • Closed End SPE Cartridge: Activated Sodium Sulfate

    Restek

    High quality anhydrous sodium sulfate Approximately 2 grams prepackaged in a convenient capped cartridge with both male and female luer ends for easy connection to a variety of devices or equipment The adsorbent is fully activated and ready to use for removal of excess water from organic…

  • Celite 281

    MilliporeSigma

    CAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3

  • 30mm Filters for ASE 100/300 Extraction Cells

    Restek

    Cellulose or glass fiber construction

  • SDVB Resin

    Restek

    Styrene/divinylbenzene, equivalent to XAD-2 resin Untreated, packaged in 1 kg plastic containers Spherical, 20 to 60 mesh particles

  • Canister Carrying Box Kit

    Restek

    6-liter carrying boxes with plastic handles simplify canister transport. Four carrying boxes and one shipping box per kit.

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