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  • 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…

  • 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).…

  • Intermediate-Polarity Deactivated Guard/Retention Gap Columns/Transfer Lines …

    Restek

    Tested with a comprehensive test mix to ensure high inertness. Useful for a wide range of applications. Use with most common solvents. Maximum temperature: 325°C. *30- and 60-meter lengths are banded in 5-meter sections. †Recommendation: Cut 60 m guard columns into shorter…

  • Raptor™ C18 LC Columns (USP L1)

    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…

  • Ultra Biphenyl 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™ ARC-18 LC Columns (USP L1)

    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-2330 Columns (fused silica)

    Restek

    highly polar phase; biscyanopropyl cyanopropylphenyl polysiloxane Rtx-2330 is one of the most polar capillary column stationary phases. Cyano groups on both sides of the polymer backbone give the phase a strong dipole moment and high selectivity for cis/trans compounds or compounds with…

  • Ultra IBD Columns (USP L68)

    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…

  • MXT-5 Columns (Siltek-treated stainless steel)

    Restek

    low-polarity phase; Crossbond diphenyl dimethyl polysiloxane The diphenyl dimethyl polysiloxane stationary phase is the most popular GC stationary phase and is used in a wide variety of applications. All residual catalysts and low molecular weight fragments are removed from the MXT-5 polymer,…

  • Rxi-1ms Columns (fused silica)

    Restek

    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…

  • 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…

  • Rtx-5 (G27) Columns (fused silica)

    Restek

    low-polarity phase; Crossbond diphenyl dimethyl polysiloxane The diphenyl dimethyl polysiloxane stationary phase is the most popular GC stationary phase and is used in a wide variety of applications. All residual catalysts and low molecular weight fragments are removed from the Rtx-5 polymer,…

  • 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. …

  • 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…

  • Ultra 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. …

  • Stabilwax Columns (fused silica)

    Restek

    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…

  • Ultra Cyano Columns (USP L10)

    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-5MS—Low-Bleed GC-MS Columns (fused silica)

    Restek

    low-polarity phase; Crossbond diphenyl dimethyl polysiloxane General purpose columns for drugs, solvent impurities, pesticides, hydrocarbons, PCB congeners (e.g., Aroclor mixes), essential oils, semivolatiles. Column specifically tested for low-bleed performance. Temperature range:…

  • Rtx-BAC2 Columns (fused silica)

    Restek

    proprietary Crossbond phase These columns separate to baseline all blood alcohol compounds in blood, breath, or urine, in less than 3 minutes, under isothermal conditions. Isothermal analysis increases productivity by eliminating the need for oven cycling. Confirmation is easily achieved with…

  • 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…

  • Ultra C8 Columns (USP L7)

    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. …

  • MXT-1 Columns (Siltek-treated stainless steel)

    Restek

    nonpolar phase; Crossbond dimethyl polysiloxane MXT-1 columns exhibit long lifetime and very low bleed at high operating temperatures. A proprietary synthesis process eliminates residual catalysts that could cause degradation and increase bleed. General-purpose columns for solvent…

  • Force™ FluoroPhenyl LC Columns (USP L43)

    Restek

    Capable of both reversed-phase and HILIC separations Ideal for increasing sensitivity and selectivity in LC-MS analyses Offers increased retention for charged bases Similar Phase(s): Discovery HS F5, Luna PFP(2), Pursuit PFP, Acquity UPLC HSS PFP, Hypersil Gold PFP, Titan PFP (1.9…

  • 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,…

  • Ultra Bulk Packing Materials

    Restek

    Use our bulk packing materials to pack your own columns! Prepare your own columns in conventional or custom dimensions Consistent, high-quality materials Our extensive QC program ensures the high quality and reproducibility of these silicas. You can be confident that you are getting…

  • Ultra C4 Columns (USP L26)

    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-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. …

  • Force™ Biphenyl LC Columns (USP L11)

    Restek

    Ideal for bioanalytical testing applications like drug and metabolite analyses Heightened selectivity and retention for compounds that are hard to resolve or elute early on C18 and other phenyl chemistries Limits ionization suppression and allows simple, MS-friendly mobile phases …

  • Ultra PFP Propyl Columns (USP L43)

    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™ FluoroPhenyl LC Columns (USP L43)

    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…

  • Allure Organic Acids Columns

    Restek

    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…

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