Sample Preparation, Chromatography

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Sample Preparation, Chromatography

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  • Celite 503

    MilliporeSigma

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

  • Resprep SPE Cartridges (Bonded Reversed Phases)

    Restek

    Hydrophobic (nonpolar) silica-based adsorbents; used to extract hydrophobic analytes from polar matrices, such as water (e.g., pesticides from water). All cartridges are manufactured using high density polypropylene and have polyethylene frits unless otherwise noted. Cartridges may be…

  • 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…

  • Thermal Desorption (TD) 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…

  • Replacement Parts for Resprep SPE Manifolds

    Restek

  • 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…

  • 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'…

  • 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…

  • Granulated Activated Copper (Bulk Adsorbent)

    Restek

    Activated copper effectively removes elemental sulfur from environmental extracts. Our acid-washed and activated material can be used right out of the package. The 30 mesh granular material eliminates the potential for fine copper particles in filtered extracts. Convenient form for removing…

  • Method Specific SPE Cartridges

    Restek

    These cartridges have been specifically designed to provide consistent and reproducible results for the method or application stated. All cartridges are manufactured using high density polypropylene and have polyethylene frits unless otherwise noted. Cartridges may be processed by any one or…

  • 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…

  • 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…

  • 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…

  • 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…

  • Luer Lock Valve Adaptors

    Restek

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

  • radiello™ Empty Storage Tubes

    MilliporeSigma

    Used for storing Radiello Cartridge Adsorbents before and after diffusive sampling.

  • 250mL Sample Collection Bottles for ASE 100/300 Systems

    Restek

    Cleaned, assembled, and ready to use Clear or amber glass Caps and PTFE-lined septa included

  • Sample Cylinder 316 SS End Pipe Plug

    Restek

  • Replacement Orifices

    Restek

    Use these orifices with a Veriflo 423XL flow controller to change the flow range for alternative sampling times.

  • Resprep SPE Tube Parts & Accessories

    Restek

  • Accessories for Rocker Vacuum Pumps

    Restek

  • Aura Personal Air Samplers

    Restek

    Disposable 8-Hour Sampler Lines

  • 7 µm In-Line Filters

    Restek

    This 316 stainless steel filter is designed to collect particles larger than 7 microns. We offer Siltek-treated and stainless steel versions (1/4" compression fitting on both ends). Note: frit is not replaceable.

  • Miniature 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.* Kit includes flow controller, critical orifice, 2 µm frit filter, vacuum gauge, and sample inlet. The gauge and sample inlet are downsized for…

  • ACTI-VOC Low-Flow TD Sampling Pump

    Restek

    Robust, low-flow pump optimized for sampling volatile organic compounds (VOCs) onto thermal desorption (TD) sorbent tubes Small, lightweight, easy to use, and intrinsically safe—ideal for personal monitoring and a wide range of other air and gas sampling applications Compatible with any…

  • Resprep SPE Cartridges (Normal Phase)

    Restek

    Hydrophilic (polar) adsorbents used to extract hydrophilic analytes from nonpolar matrices, such as organic solvents (e.g., polar contaminants from sample extracts). All cartridges are manufactured using high density polypropylene and have polyethylene frits unless otherwise noted. …

  • 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…

  • Mini-Can Accessories

    Restek

    These accessories enhance mini-can usage and provide flexibility in their application, from personal, to area, to vapor intrusion sampling. Sampling Belt: Adjustable up to 50" Two reclosable hook-and-loop straps securely hold mini-can or other sampling device Straps slide…

  • 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…

  • Filter Insertion Attachments for ASE 100/200/300

    Restek

    ASE 100/300 (For use with 10 mL-, 34 mL-, 66 mL-, and 100 mL-size cell bodies.) ASE 200 (For use with 5 mL-, 11 mL-, 22 mL-, and 33 mL-size cell bodies.)

  • Metering Control Valves

    Restek

    Reduces pressure between sample cylinder and GC injector Maintains fine metering control Contains Kel-F seat

  • 2 µm Frit Filters

    Restek

    For use in critical orifice fitting. Includes washers.

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