Sample Preparation, Chromatography

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Sample Preparation, Chromatography

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  • 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…

  • 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

  • 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,…

  • 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…

  • These small canisters are designed for controlled sampling, such as personal air sampling, as an alternative to tube and pump samplers. The 1,000 cc canister is suitable for sampling volatile organic compounds in air according to methods TO-14A, TO-15, IP-1A, ASTM 5466, OSHA PV 2120, and NJ DEP Low…

  • 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…

  • 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 +/–…

  • 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…

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

  • 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…

  • General Description For continuous "hands off" direct transfer of multiple liquid samples A Visiprep large volume sampler enables you to transfer low viscosity samples directly from any sample container to conventional solid phase extraction tubes on a Visiprep SPE vacuum…

  • 2-inch vacuum/pressure gauges, 316 stainless steel with 1/8" NPT fitting and center back mount. Recommended for use with canisters.

  • PTFE wetted parts are highly resistant to corrosive gases Diaphragm-based pump is low maintenance and virtually pollution free 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…

  • 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

  • Compatible with most vacuum manifold systems that accept 1/8-inch male luer fittings Sample can be automatically introduced via 1/8-inch PTFE tubing or from the optional Diskcover-47 reservoir

  • 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…

  • ?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…

  • 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…

  • 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…

  • 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. …

  • 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…

  • Includes: handle and two attachment rings.

  • 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…

  • 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…

  • 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…

  • Delivers a true aerosol with no droplets. Enables thorough brushing for uniform development. Spray action begins at .028m3 per minute air flow. Atomization rate approximately 10cc per minute. Easily controlled with thumb pressure on vent hole. Suction stem is 125mm long.

  • Equivalent 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.

  • These timers are designed to simplify both automated and manual air sampling. The easy-to-use keypad and graphic display facilitate the programming of up to 12 timed events. They offer the convenience of remote start/stop sampling and permit intermittent sampling throughout a test period. The LCD…

  • 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'…

  • This unique grab sampler is specifically designed for soil gas sampling by allowing the connection of tubing coming from the soil gas sample port. The innovative design minimizes connections and leaks and houses a critical orifice in the tee fitting. It also incorporates a vacuum gauge and 2…

  • 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…

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