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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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,…
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Large Volume SPE Reservoir
MilliporeSigmaRetention Mechanisms: Lipid matrix is retained via normal phase, hydrophobic, and Lewis acid-Lewis base interactions Sample Matrix Compatibility: Oils Dual layer SPE that contains both LC-Florisil® (upper layer) and Z-Sep/C18 (lower layer) SPE sorbents, separated by a PE frit …
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ALTEF Gas Sampling Bags
RestekSampling 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…
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Silica Gel 60 (230-400 Mesh) 25 Kg Silicar
Avantor - Macron Fine Chemicals™For Column Chromatography Grade: SilicAR CAS Number: 63231-67-4 HTS Number: 2811221000 Specific Gravity: 1L = 2.10 Kg Management of Change: N
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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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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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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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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…
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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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Automated, in-line sample extract cleanup dramatically reduces sample preparation time. Simultaneous analysis and ILSP cartridge wash eliminate downtime between samples. Fast, simple alternative to QuEChERS or SPE for multiresidue pesticides analysis in foods. Minimizes money spent on…
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Vacuum Gauges
RestekHigh-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.
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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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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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?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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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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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…
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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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Allows sequential sampling of up to 32 thermal desorption tubes (3.5" each) Worry-free, independent operation lets you get more done—simply set up the unit in the field for extended sampling, then retrieve it at the end of the sampling period Reliably collect accurate samples;…
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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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Chromatographic Spray
Ace GlassDelivers 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.
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SafeLok Sorbent Tubes
RestekFeature patented diffusion-locking technology at either end of the sorbent bed to prevent diffusive ingress of atmospheric contaminants outside the pumped sampling period Significantly reduce the risk of contamination from poorly fitted or loose caps Prevent necking and other damage to the…
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CAS No.: 68855-54-9 pH: 10 (100 g/l, H2O, 20°C) Solubility: Bulk Density: 300 kg/m3
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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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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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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…
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Extend the lifetime of air canisters, flow controllers, and other accessories. Serve as a more economical sacrificial connection, protecting more valuable equipment from thread damage. Optional filter frit removes particulates that cause damage, leaks, and valve failure. Standard compression…
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PEEK Washers for ASE Systems
RestekMeet original equipment manufacturer’s performance Available in various quantities
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Threaded Midget Bubbler
MilliporeSigmaFeatures and Benefits Threaded Midget Bubbler - 20mm threads. Fritted glass stem. Back pressure <7 in. of water with 15mL water. 6-dram vial (22mL) included. General description These borosilicate glass impingers (for particles) and bubblers (for gases and vapors) are ideal for NIOSH…
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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…
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