Restek, Sample Preparation, Chromatography
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Ultra-Clean Resin
RestekEquivalent to XAD-2 Resin—Exclusively from Restek! Ultra-Clean resin typically eliminates the hassle of cleaning and testing resin for air sampling. For adsorbing semivolatiles in air. Cleaned and GC tested. Available in 100 gram quantities.
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Cleaned, assembled, and ready to use Clear or amber glass Caps and PTFE-lined septa included
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Diatomaceous earth is used as a filter aid to improve extraction efficiency of densely packed soils, such as clays. By mixing the sample with diatomaceous earth, recoveries can be improved and excess moisture can be absorbed. Packaged in a convenient 1 kg quantity. Improves extraction…
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?Proprietary electropolished surface that maintains compound stability. High quality, Bellows-design valve. Now also available with new RAVE valve. U.S. EPA Methods TO-14A and TO-15 regulate the collection, storage, and analysis of volatile organic compounds (VOCs) using treated air…
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Attach quick-connect body fitting to stem fitting to open canister. Attach quick-connect stem protector to stem fitting when not sampling to prevent canister from accidentally opening. Connection: 1/4" tube fitting. Note: Quick-connect body fitting (cat.# 24187) must be ordered separately…
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Resprep PPT 96-Well Plates
RestekPolypropylene protein precipitation (PPT) 96-well plates offer highly efficient >99% protein removal Minimum 24-hour drip-free feature for easy in-well protein precipitation—no fear of backflushing or contamination Built-in dual-layer membrane with different porosities in each layer…
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Resprep® vacuum manifolds for SPE sample preparation, filtration, and elution are available in 12- and 24-port configurations. These manifolds help in achieving consistent extraction and filtration results. Multiple sample processing with these manifolds simplifies procedures and saves time. The…
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Small Cylinder Stand
RestekThis 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…
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The Restek Cleaned Polyurethane Foam (PUF) Cartridges offers the following features: Use for collection of semivolatiles (pesticides, PCBs, PAHs) Both large high-volume (220–280 L/min) and small low-volume (1–5 L/min) PUFs available Suitable for ambient, indoor, and industrial hygiene…
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Ashcroft Test Gauges
RestekHigh-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 +/–…
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Humidification Chamber
RestekWhen 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…
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7 µm In-Line Filters
RestekThis 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.
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High capacity, fully automated, easy-to-use canister cleaning oven dramatically increases lab efficiency. TO-Clean from Restek is a revolutionary canister cleaning system designed to take the guesswork out of canister cleaning. The system is fully automated, allowing the user to start a cleaning…
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PEEK Washers for ASE Systems
RestekMeet original equipment manufacturer’s performance Available in various quantities
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1/16" fittings, 1mm ID, for "W Type" valves Ideal for samples containing low concentrations of sulfur or other active compounds Sample loop sizes from 5 µL to 5 mL Sulfinert treatment eliminates active sites in the valve or loop for better recovery of active compounds.
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Luer Lock Valve Adaptors
RestekUse a luer lock valve adaptor to connect a luer lock fitting to a Rheodyne or Valco valve.
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Glass fiber disks embedded with C18 or C8 bonded silica Extract semivolatile organic compounds Deep-pore design reduces clogging and allows faster flow rates Meet requirements for EPA Methods 525.1, 506, 550.1, and 549.1 Lower cost than PTFE disks
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Rocker Vacuum Pumps
RestekOil-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…
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47 mm glass fiber disks embedded with specialty bonded silica Meet requirements for EPA Method 1664.* Reduce emulsion formation and amount of solvent required by previous EPA methods No chlorofluorocarbons needed *A sodium sulfate drying tube (cat.# 26207) and a 0.45 µm PTFE…
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Free-flowing salts transfer easily and completely. Easy-open packets eliminate the need for a second empty tube for salt transfer. Convenient slim packets fit perfectly into tubes to prevent spills. Ready-to-use tubes, no glassware required. Pre-weighed, ultra-pure extraction salts. …
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1174R53 : Long-term storage of blank/sampled tubes. 1174R54 : Long-term storage caps. 1174R55 : Use for tightening long-term storage caps. 1174R57 : Assists with tube packing. 1174R58 : Use for connecting tubes in series. 1174R59 : Required for diffusive sampling with stainless…
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Cleaned, assembled, and ready to use Clear or amber glass Caps and PTFE-lined septa included
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Anhydrous sodium sulfate is the most common drying agent used to remove moisture from sample extracts. We package our 10-60 mesh material in recloseable buckets. Ideal for removing water from sample extracts Activate by heating to 400°C for four hours before use Packaged in…
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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…
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New personal air sampling technology designed to meet OSHA and NIOSH requirements for industrial hygiene applications Quiet, robust sampler does not require a pump and manages variations in face velocity, temperature, and humidity better than traditional sampling approaches Easy to…
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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…
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Easy-VOC Grab Sampler
RestekPerfect for fast and simple grab sampling of small air volumes (50–500mL) directly into sorbent tubes* Easy, instant sample collection with no complicated pumps to calibrate or maintain Convenient to use anywhere, just attach a sorbent tube to the end of the handheld unit and draw a…
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Quickly and precisely verify flow rates generated by vacuum or pressure before going into the field. These compact, convenient units are ideal for real-time calibration of air flow controllers, passive sampling kits, air canisters, sampling pumps, and more. They measure absolute pressure, mass…
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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…
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The Restek accessories are compatible to use with Resprep SPE tubes and have a strong polypropylene material that offers great strength and durability.
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2-inch vacuum/pressure gauges, 316 stainless steel with 1/8" NPT fitting and center back mount. Recommended for use with canisters.