Restek

Easily remove liner from injector—no more burned fingers Made from high-temperature silicone Won’t chip or crack the liner

The industry's only suite of off-the-shelf reference standards for detecting ethylene oxide and 1,4-dioxane in PEG-based products. Formulated with concentrations needed by labs analyzing cosmetics and personal care products for possible carcinogens. Quantitatively tested to confirm composition;...

Ashcroft Gauge Connector to Canister Valve, stainless steel, connects 1/4" male NPT to 1/4" male compression fitting

This duo provides an alternative way to install capillary columns to the correct insertion distance recommended by the instrument manufacturer. "Lock" capillary columns to the correct insertion distance recommended by the instrument manufacturer during installation Useful for many...

Conc. in Solvent and Volume: 2,000 μg/mL each in P&T methanol, 1 mL/ampul Max Shelf Life on Ship Date: 60 months Min Shelf Life on Ship Date: 6 months Certified Reference Material (CRM): Yes CAS #: 71-43-2; 98-06-6; 108-90-7; 98-82-8; 103-65-1; 100-42-5; 108-88-3; 108-67-8; 108-38-3

Ultra HPLC Columns The Ultra line represents Restek’s broadest selection of stationary phases on a single silica support. Made of high-purity, type-B silica that minimizes activity and creates high-density bonding, these columns are designed for selective and reliable HPLC applications. Our C8...

Ready to use for QuEChERS extractions—no dilutions necessary.

Compound List (C8) n-Octane (111-65-9) (C10) n-Decane (124-18-5) (C12) n-Dodecane (112-40-3) (C16) n-Hexadecane (544-76-3) (C21) n-Heneicosane (629-94-7) (C34) n-Tetratriacontane (14167-59-0)

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...

Reversible, two-sided design allows significantly more analyses than other seals, at the same price—simply use, flip, then use again! Vespel ring embedded in top and bottom surface eliminates need for a washer. Highly inert gold or Siltek-deactivated seals reduce breakdown and adsorption of...

Verify GC oven temperature Quick measurements via sensor in the measuring tip Swivel head can turn 180° Wide measuring range: -50°C to +350°C.

nonpolar phase; Crossbond dimethyl polysiloxane Rxi fused silica capillary GC columns were designed specifically to be the best columns available, for exceptional inertness, ultra-low bleed, and reproducible retention and selectivity. In addition to outstanding performance, this combination of...

Conc. in Solvent and Volume: 2,000 μg/mL each in methanol, 1 mL/ampul Max Shelf Life on Ship Date: 55 months Min Shelf Life on Ship Date: 6 months Certified Reference Material (CRM): Yes CAS #: 92-87-5; 91-94-1

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

Full 82-component EPA 524.3 list using as few as three ampuls—reduce prep time and chances for error or contamination. EPA 524.3 VOA MegaMix ampul includes oxygenates group—no need to order separately. Volatile gases prepared separately—replace shorter-life components without...

Burr-free, perpendicular cuts that will not distort the tubing OD or close the ID Use on PEEK, PTFE, Tefzel, and other polymeric tubing

Conc. in Solvent and Volume: 2,000 µg/mL each in hexane:toluene (1:1), 1 mL/ampul Compounds Aldrin (309-00-2) a-BHC (319-84-6) ß-BHC (319-85-7) d-BHC (319-86-8) ?-BHC (Lindane) (58-89-9) cis-Chlordane (5103-71-9) trans-Chlordane (5103-74-2) 4,4'-DDD (72-54-8) 4,4'-DDE (72-55-9) 4,4'-DDT (50-29-3)...

UHP stainless steel regulators are the standard for ultra-high-purity and corrosion-resistant pressure regulation. They are more easily purged of atmospheric components compared to brass gas regulators, making them ideal for the most demanding applications. Stainless steel is especially useful in...

Choose preslit caps (available for some vials) to reduce the risk of needle bending, release vacuum from high-volume injections, and improve injection reproducibility when greater than 20% of vial volume is withdrawn.

High-purity material with highest reproducibility and lowest blank values due to an optimized manufacturing process. Excellent recovery rates, especially for the enrichment of pharmaceuticals and active ingredients, due to the spherical particle shape, homogeneous surface, and optimized pore...

Extend analytical column lifetime by preventing degradation from harsh "steam-cleaning" water injections Maximum temperature: 325°C When transfer lines from purge-and-trap systems, air monitoring equipment, or other instruments carry condensed water vapor, deactivated column tubing...

Restek's SPME Vial Septa are engineered to provide an effective seal for SPME vials in gas chromatography applications. These septa are crafted from durable materials to withstand puncture and maintain integrity during sample introduction. They ensure airtight conditions, essential for accurate and...

Compound: Decafluorotriphenylphosphine (DFTPP) CAS #: 5074-71-5 Conc. in Solvent and Volume: 2,500 μg/mL in methylene chloride, 1 mL/ampul Min Shelf Life on Ship Date: 6 months Certified Reference Material (CRM): Yes

Ideal for high-flow split applications >500 mL/min. Washerless, leak-tight seals