Chromatography Sample Preparation
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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.
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Proven long life—durable design is engineered to exceed 15,000 cycles Leak-free performance—every valve is helium leak-tested to 1x10 -6 mL/sec Effortless operation—easily finger-turn to achieve full valve closure (only 10 in-lb) Enhanced damage-resistance—W-type…
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Can be used for internal or external retaining rings Works to remove retaining ring in all ASE cell caps
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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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Convenient, multiple adsorbent beds in a single cartridge For use in multiresidue pesticide analysis to remove matrix interferences Excellent for cleanup of dietary supplement extracts
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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
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1/4” Diaphragm Valves, RAVE+
RestekExclusive polymer-free construction means no sample contamination from off-gassing or target compound loss due to adsorption. Durable, roller-hardened valve port threads provide superior performance—and every valve is helium leak tested to 1x10 -6 mL/sec. Rugged, work-hardened, proprietary,…
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For ultimate inertness, SilcoCan air sampling canisters feature our unique Siltek treatment technology. Even highly active components, at low parts-per-billion concentrations, can be readily sampled and stored without loss. The RAVE valve is a high-quality, metal-to-metal seal, 2/3-turn valve with…
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Ottawa Sand (Bulk Adsorbent)
RestekOttawa 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
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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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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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Cleaned, assembled, and ready to use Clear or amber glass Caps and PTFE-lined septa included
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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…
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Use with 1, 3, or 6 L canisters for grab air sampling Variety of orifice sizes for fast sampling from 5 to 60 minutes Connect 1/4" compression fitting directly to canister valve inlet Replaceable frit protects orifice and valve from particulates Sample inlet design minimizes water…
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Celite 281
MilliporeSigmaCAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3
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Celite 545 Particle Size 0.02-0.1 mm
MilliporeSigmaCAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3
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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…
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Cellulose or glass fiber construction Fit 11 mL, 22 mL, and 33 mL cells Cellulose filters available in economical 1,000-packs
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Single-stage, stainless steel Two pressure gauges and CGA-180 fitting Stainless steel diaphragm and Kel-F seat Accurate pressure control even at low flow rates Individually tested for leaks and impurities
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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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SDVB Resin
RestekStyrene/divinylbenzene, equivalent to XAD-2 resin Untreated, packaged in 1 kg plastic containers Spherical, 20 to 60 mesh particles
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Gas Sampling Valves
RestekSulfinert treatment eliminates active sites in the valve or loop for better recovery of active compounds. Ideal for samples containing low concentrations of sulfur or other active compounds Sample loop sizes from 5 µL to 5mL
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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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Celite 503
MilliporeSigmaCAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3
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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…
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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…
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Field duplicates of canister samples frequently result in analyte concentrations with high relative standard deviations. In addition, field duplicates do not differentiate laboratory performance from sampling variability. Restek’s dual canister sampling manifold (DCSM) minimizes sampling…
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CarboPrep cartridges are manufactured from chromatographic-grade, nonporous, graphitized carbon. Our manufacturing process minimizes variability and improves recovery and cleanup procedures. We offer two types of carbons: CarboPrep 90 has a surface area of approximately 90 m 2 /g, and CarboPrep…