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  • Rtx-1 Columns (fused silica)

    Restek

    nonpolar phase; Crossbond dimethyl polysiloxane General-purpose columns for solvent impurities, PCB congeners (e.g., Aroclor mixes), simulated distillation, arson accelerants, gases, natural gas odorants, sulfur compounds, essential oils, hydrocarbons, semivolatiles, pesticides, oxygenates. …

  • Rtx-624 Columns (fused silica)

    Restek

    low- to midpolarity phase The unique polarity of the Rtx-624 column makes it ideal for analyzing volatile organic pollutants. Although the Rtx-502.2 column is recommended in many methods, the Rtx-624 column offers better resolution of early eluting compounds. The Rtx-624 phase produces greater…

  • Rtx-1301 (G43) Columns (fused silica)

    Restek

    low- to midpolarity phase Many analysts feel the Rtx-1301 column has the best cyanosiloxane bonded stationary phase available, with no other column manufacturer providing lower bleed, longer lifetime, or better inertness. Our polymer is fully characterized to ensure long-term reproducibility,…

  • Force™ C18 LC Columns (USP L1)

    Restek

    A traditional end-capped C18 ideal for general-purpose use in reversed-phase chromatography Wide pH range (2–8) provides excellent data quality for many applications, matrices, and compounds Offers high hydrophobic retention Similar Phase(s): Discovery C18, Symmetry C18, Hypersil…

  • Stabilwax-DA Columns (fused silica)

    Restek

    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…

  • MXT-WAX Columns (Siltek-treated stainless steel)

    Restek

    polar phase; Crossbond Carbowax polyethylene glycol—provides oxidation resistance General-purpose columns for FAMEs, flavor compounds, essential oils, amines, solvents, xylene isomers, and U.S. EPA Method 603 (acrolein/acrylonitrile). Equivalent to USP G14, G15, G16, G20, and G39…

  • Rtx-5 Amine Columns (fused silica)

    Restek

    low-polarity phase; Crossbond 5% diphenyl/95% dimethyl polysiloxane Active basic compounds that otherwise require derivatization, or an alternative analytical technique, can be analyzed on an Rtx-5 Amine column. The tubing surface is chemically altered to reduce tailing of basic compounds,…

  • Rxi-5ms Columns (fused silica)

    Restek

    low-polarity 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…

  • Rtx-200 Columns (fused silica)

    Restek

    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…

  • Porous Polymer Columns

    Restek

    Restek offers a full range of porous polymers, including HayeSep and Porapak polymer packings for analyses of volatile compounds and light solvents.

  • HayeSep Packing Materials

    Restek

  • Rtx-20 Columns (fused silica)

    Restek

    low- to midpolarity phase; Crossbond diphenyl dimethyl polysiloxane Rtx-20 polymer is synthesized to exacting standards. All residual catalysts and low molecular weight fragments are removed from the polymer, providing a tight monomodal distribution and extremely low bleed. …

  • Micropacked GC Columns

    Restek

    Increased efficiency over traditional packed columns. Higher capacity than PLOT columns. Made from inert, flexible SilcoSmooth tubing. Wide range of packings available. Standard coils fit all instruments. No special instrument configurations required. Efficient, Inert, and…

  • Roc™ C18 HPLC Columns (USP L1)

    Restek

    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,…

  • Rxi-5Sil MS Secondary Columns for GCxGC (fused silica)

    Restek

    low-polarity phase; Crossbond 1,4-bis(dimethylsiloxy)phenylene 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…

  • Empty Chromatography Columns

    Restek

    316 stainless steel tubing complete with end-fittings, frits, nuts, and ferrules Preassembled prior to shipment Internal 1/16" seats are compatible with Valco and Parker fittings

  • Rt-XLSulfur Columns

    Restek

    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.…

  • Viva C18 Columns (USP L1)

    Restek

    Viva HPLC Columns: 3 or 5 µm particles; 300 Å pore size Excellent for separating peptides or proteins Rugged, spherical particles with 300 Å pore size High proportion of pore/surface area available to large molecules Viva columns are based on a wide pore material…

  • ShinCarbon ST Columns

    Restek

    Analyze oxygen, nitrogen, methane, carbon monoxide, and carbon dioxide with one column at room temperature. ShinCarbon ST material, a high surface area carbon molecular sieve (~1,500 m 2 /g), is the ideal medium for separating gases and highly volatile compounds by gas solid chromatography (GSC).…

  • Ultra Aromax Columns (USP L11)

    Restek

    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. …

  • Raptor™ Biphenyl LC Columns (USP L11)

    Restek

    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…

  • Rtx-VMS Columns (fused silica)

    Restek

    proprietary Crossbond phase Rtx-VMS columns offer lower bleed, better selectivity, and overall faster analysis for separating volatile organic compounds, such as those listed in U.S. EPA Method 8260B. The Rtx-VMS stationary phase is a highly stable polymer that provides outstanding analysis of…

  • Deactivated Fused Silica Tubing (Nonpolar)

    Restek

    Useful as guard columns, transfer lines, or long retention gaps Inertness-tested with the Grob test mix includes test chromatogram. 5-meter banded sections mounted in a Restek cage. Maximum temperature: 325°C Note: 30- and 60-meter lengths are banded in 5-meter sections. …

  • Ultra Aqueous C18 Columns (USP L1)

    Restek

    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. …

  • Rtx-Wax Columns (fused silica)

    Restek

    polar phase; Crossbond polyethylene glycol Rtx-Wax columns are the most inert and efficient PEG columns currently available. The extended operating temperature range allows analysis of compounds having a wide volatility range and ensures low bleed at temperatures as high as 250°C.…

  • Rtx-50 Columns (fused silica)

    Restek

    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…

  • Rtx-65 Columns (fused silica)

    Restek

    mid- to high-polarity phase; Crossbond diphenyl dimethyl polysiloxane The Rtx-65 phase contains the highest phenyl content of any bonded stationary phase available to improve separation of aromatic compounds through increased phase-analyte interaction. A unique polarity makes these columns…

  • Res-Sil Packing Materials

    Restek

    Unique separation of saturated and unsaturated hydrocarbons. Innovative bonding chemistry for batch-to-batch reproducibility, excellent thermal stability, and long life. Wide range of bonded phases available. Equivalent to Durapak and Porasil packings. Bonded silica packings with…

  • Rxi-17 Columns (fused silica)

    Restek

    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…

  • Roc™ Cyano HPLC Columns (USP L10)

    Restek

    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,…

  • Roc™ Phenyl-Hexyl HPLC Columns (USP L11)

    Restek

    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,…

  • Pinnacle® II PAH HPLC Columns

    Restek

    Developed specifically for challenging analyses of polycyclic aromatic hydrocarbons (PAHs). The Pinnacle II PAH stationary phase incorporates a proprietary C18 bonding that enables unique shape selectivity to baseline-resolve all 16 PAHs listed in U.S. EPA Method 610 plus two other routinely…

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