Restek chemists became the first to combine the speed of superficially porous particles (also known as SPP or “core-shell” particles) with the resolution of highly selective USLC technology. This new breed of chromatographic column allows you to more easily achieve peak separation and…

low-polarity proprietary phase 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 column…

A retentive, high-purity, base-deactivated, reversed-phase packing. Ideal for the analysis of paraquat and diquat or other quaternary amines. Particle Size: 3 µm or 5 µm, spherical Pore Size: 100 Å pH Range: 2.5 to 8 Temperature Limit: 80°C

Sulfur analyses are traditionally performed using PTFE tubing to improve column inertness. Unfortunately, PTFE tubing is gas permeable, difficult to pack with high efficiency, prone to shrinkage, and has poor thermal stability. The Rt-XLSulfur packed or micropacked column eliminates these problems.…

Restek chemists became the first to combine the speed of superficially porous particles (also known as SPP or “core-shell” particles) with the resolution of highly selective USLC technology. This new breed of chromatographic column allows you to more easily achieve peak separation and…

polar phase; Crossbond acid-deactivated Carbowax polyethylene glycol—for acidic compounds Stabilwax-DA bonded polyethylene glycol has an acidic functionality incorporated into the polymer structure. This permits analysis of acidic compounds without derivatization, significantly reduces…

Ideal for the analysis of triglycerides in edible oils Excellent thermal stability up to 370 °C ensures consistent results and longer column lifetimes Separate and quantify critical triglycerides (acylglycerols) without interference from column bleed Observe even underivatized mono- and…

Roc HPLC columns are built to be the cornerstone for your LC lab. These solid, reliable columns are pressure rated for any 400 bar HPLC system and deliver the peak shape, reproducibility, ruggedness, and performance you demand for all of your conventional HPLC applications. An exceptional value,…

midpolarity phase; Crossbond phenyl methyl polysiloxane The high thermal stability of Rtx-50 columns makes dual-column analysis possible with common phases such as Rtx-1 or Rtx-5MS. General-purpose columns for pesticides, herbicides, rosin acids, phthalate esters, sterols Equivalent to…

Proprietary cyclodextrin material added into 14% cyanopropylphenyl/86% dimethyl polysiloxane By adding β or γ cyclodextrin to our bonded Rtx-1701 stationary phase, we greatly enhance overall utility and column lifetime for our chiral columns, compared to columns that have pure…

Conforms to the specifications established in the current ASTM method D3606 for the quantitation of benzene and toluene in spark ignition fuel containing ethanol. Complete resolution of benzene from ethanol—no compromising coelutions. Accurate quantification of benzene and toluene.…

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. …

Allure Organic Acids columns provide enhanced retention and selectivity for polar organic acids, allowing the separation to be performed on a single 30 cm column. An Allure Organic Acids column effectively resolves key organic acids such as tartaric and quinic acids using the chromatographic…

Roc HPLC columns are built to be the cornerstone for your LC lab. These solid, reliable columns are pressure rated for any 400 bar HPLC system and deliver the peak shape, reproducibility, ruggedness, and performance you demand for all of your conventional HPLC applications. An exceptional value,…

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. …

low- to midpolarity phase General-purpose columns for residual solvents, alcohols, oxygenates, and volatile organic compounds. Temperature range: -20°C to 280°C. Equivalent to USP G43 phase. 4.5" standard coil diameter.

2,3-di-O-propyl-6-O-tert-butyl dimethylsilyl beta cyclodextrin added into 14% cyanopropylphenyl/86% dimethyl polysiloxane By adding β or γ cyclodextrin to our bonded Rtx-1701 stationary phase, we greatly enhance overall utility and column lifetime for our chiral columns, compared to…

polar phase; Crossbond polyethylene glycol Restek’s polar-deactivated surface tightly binds the Carbowax polymer and increases thermal stability, relative to competitive columns. Because of the increased stability produced by the bonding process, Stabilwax columns exhibit long column…

nonpolar phase; Crossbond 100% dimethyl polysiloxane—for simulated distillation MXT-2887 columns' stationary phase, column dimensions, and film thicknesses have been optimized to exceed the resolution and skewing factor requirements specified in ASTM Method D2887. Each column is…

Easy scale-up from Restek analytical columns Popular bonded phases Restek makes it easy to scale up your separations. We offer a wide range of semipreparative and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded phases on a 5 μm…

HayeSep® porous polymers are macroporous, spherical, ultrapure resins for performing unique separations in gas chromatography. Columns packed with HayeSep® polymers produce lower bleed and more reproducible characteristics than those packed with any competing polymeric product, and they require…

low- to midpolarity phase The unique polarity of "624" columns makes them ideal for analyses of volatile organic pollutants. Although the MXT-502.2 column is recommended in many methods, MXT-624 columns offer the best separation of the early-eluting gases. Application-specific…

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. …

These application-specific columns for blood alcohol analysis baseline separate all critical compounds—including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol—in less than 2 minutes. Every Rtx-BAC Plus 1 and Rtx-BAC Plus 2 column is qualified with a…

midpolarity phase; Crossbond diphenyl 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…

Low bleed levels Longer column lifetimes Short conditioning times Bonded phases are used in capillary columns because they provided a dramatic increase in column quality. To truly bridge the gap between traditional packed columns and capillary columns, it was necessary to develop bonded…

3x faster multiresidue pesticides analysis in foods. Factory-coupled, leak-free kit makes setting up LPGC as simple as a column change. Ideal for speeding up GC-MS and GC-MS/MS methods. Integrated transfer line reduces background and stabilization time.

CarboBlack B supports up to 10% loading of a nonsilicone liquid phase CarboBlack C supports up to 1% loading of a nonsilicone liquid phase Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. Two types of CarboBlack supports are available,…

midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane Rtx-200 columns have accomplished many difficult separations not possible on any other bonded stationary phase. Many analysts consider these the best, most inert midpolarity columns available. The trifluoropropylmethyl polysiloxane…

High-quality, silica-based adsorbents. Used for common sample matrices such as food, soil, water, and petroleum. PSA - primary secondary amine. In addition to its primary use mechanisms (reversed-phase or normal phase), PSA may also be used as a weak anion exchange (WAX). PSA has a higher…

High-quality, silica-based adsorbents. Used for common sample matrices such as food, soil, and petroleum. Resprep Alumina is available in three versions: (A) Acidic (pH ~4) (B) Basic (pH ~10) (N) Neutral (pH ~7.5)

HPLC Prep Columns Easy scale-up from Restek analytical columns Popular bonded phases Restek makes it easy to scale up your separations. We offer a wide range of semipreparative and preparative-scale columns packed with many of our popular Ultra, Allure, Pinnacle DB, and Viva bonded…