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  • 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. …

  • 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…

  • 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. …

  • 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. …

  • 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,…

  • Viva Silica Columns (USP L3)

    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…

  • 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…

  • 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…

  • 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. …

  • Rtx®-1701 Columns

    Restek

    Rtx®-1701 is one of the more popular stationary phases used in capillary GC. The mix of cyano and phenyl functional groups increases the polarity and offers a different elution order relative to less polar Rtx®-1 or Rtx®-5 columns. An Rtx®-1701 column is ideal for confirmation…

  • Innovative Integra-Guard® Columns

    Restek

    Get the protection without the connection! These innovative columns incorporate both guard column and analytical column in a continuous length of tubing, eliminating the connection and all connection-associated problems! The guard column section is marked separately from the analytical…

  • Rtx®-1 Columns

    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,…

  • Rxi®-5ms Columns

    Restek

    Low-polarity phase; Crossbond® diphenyl dimethyl polysiloxane General-purpose columns for semivolatiles, phenols, amines, residual solvents, drugs of abuse, pesticides, PCB congeners (e.g., Aroclor mixes), solvent impurities Most inert column on the market Tested and guaranteed…

  • 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. …

  • Ultra C1 Columns (USP L13)

    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. …

  • Ultra Amino Columns (USP L8)

    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. …

  • 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…

  • 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. …

  • Rtx®-OPPesticides2 Columns

    Restek

    Using sophisticated computer modeling software, we created two stationary phases for separating the 53 organophosphorus pesticides (OPP) listed in EPA Method 8141. Separation is improved and analysis time is significantly reduced, compared to other columns. The extended upper temperature limit of…

  • Stabilwax® Columns

    Restek

  • Raptor™ C18 LC Columns

    Restek

    When you need a general-purpose LC column, don't just grab any C18. Choose the speed, efficiency, and long-lasting ruggedness of the Raptor™ C18. This traditional end-capped C18 offers the highest hydrophobic retention of any Raptor™ phase, and it is compatible with a wide range of…

  • Ultra Aqueous C18 HPLC Prep Columns

    Restek

    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…

  • Ultra Aromax Columns

    Restek

    Particle size: 3 μm or 5 μm, spherical Pore size: 100 Å Carbon load: 17% End-cap: yes pH range: 2.5 to 8 Temperature limit: 80 °C USP phase code: L11 Phase category: phenyl Ligand type: proprietary phenyl ligand

  • MXT®-500 SimDist Column

    Restek

    Manufactured from Siltek® treated stainless steel tubing, MXT® columns are the most durable high temperature GC columns available. As outlined in ASTM Method D6352, high temperature simulated distillation requires a column that can withstand temperatures to 430 °C. MXT®-1HT SimDist…

  • Rxi®-1ms Columns

    Restek

    Nonpolar phase; Crossbond® dimethyl polysiloxane General-purpose columns for arson accelerants, essential oils, hydrocarbons, pesticides, PCB congeners (e.g., Aroclor mixes), sulfur compounds, amines, solvent impurities, simulated distillation, oxygenates, gasoline range organics (GRO),…

  • Rxi®-5Sil MS Columns

    Restek

    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 characteristics assures Rxi® columns…

  • Ultra Quat Columns

    Restek

    A retentive, high-purity, base-deactivated, reversed-phase packing. Ideal for the analysis of paraquat and diquat or other quaternary amines.

  • Rtx®-225 Columns

    Restek

    The cyanopropyl-containing Rtx®-225 phase is slightly less polar than bonded polyethylene glycol (PEG) phases, but it can be used for many of the same applications. Improvements to the Rtx®-225 polymer have increased thermal stability, reduced bleed, and improved inertness. The…

  • Rtx-200 GC Columns

    Restek

    midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane General-purpose columns for solvents, Freon fluorocarbons, alcohols, ketones, silanes, glycols, and drugs of abuse. Excellent confirmation column with an Rtx-5 column for phenols, nitrosamines, organochlorine pesticides,…

  • Rtx®-DHA Columns

    Restek

    Gasolines are complex mixtures of hundreds of compounds. Information about concentrations of the individual components is important for evaluating raw materials and for controlling refinery processes. ASTM D6730-01 outlines a high-resolution GC method for detailed hydrocarbon analysis (DHA) of…

  • Stx®-CLPesticides Columns

    Restek

    Many laboratories analyzing organochlorine pesticides struggle with breakdown and adsorption of endrin, DDT, and methoxychlor caused by active sites throughout the analytical system. Siltek® passivation technology enables these columns to offer unsurpassed inertness and the highest responses…

  • MXT®-5 Columns

    Restek

    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, providing a tight monomodal distribution and extremely low…

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