Gas Chromatography Columns

Gas chromatography columns, commonly known as GC columns, are essential tools in analytical chemistry, used for separating and analyzing compounds that can be vaporized without decomposition. These columns are specifically designed to effectively separate gases, volatile substances, and compounds with low boiling points.

Key features of GC columns include their use of molecular sieve columns, which offer high efficiency in separating small molecules like gases and volatile organic compounds. Integrating fused silica in these columns improves their thermal stability and reduces reactivity, ensuring accurate and consistent results. The columns' design maximizes the interaction between the stationary phase and the analyzed compounds, leading to more precise identification and quantification.

In practical terms, users benefit from the columns' reliability in various applications, including environmental testing, forensic analysis, and quality control in manufacturing. Their design and material composition makes them a valuable asset in any laboratory focused on gas chromatography.

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  • polar phase; Crossbond cyanopropylmethyl phenylmethyl polysiloxane 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…

  • Agilent Technologies

    SE-30: 100% Dimethylpolysiloxane SE-54: (5%-Phenyl)(1%-Vinyl)-methylpolysiloxane Because SE series GC columns are not bonded or cross-linked, we do not recommend solvent rinsing. Agilent Technologies products are intended for sale/shipment within the US only. International customers…

  • Crossbond 100% dimethyl polysiloxane—optimized for hydrocarbon analysis 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…

  • Restek Rt-Alumina BOND columns are highly selective for C1–C5 hydrocarbons and separate all saturated and unsaturated hydrocarbon isomers above ambient temperatures. The reactivity of the aluminum oxide stationary phase is minimized, by deactivation with inorganic salts like KCl or…

  • Polyethylene Glycol (PEG) - TPA Treated Nitroterephthalic acid modified PEG Polar Phase Ideal for low molecular weight acids Application Areas: Volatile free acids, fatty acid methyl esters, alcohols, aldehydes, acrylates, ketones Operating Temperature: …

  • Agilent Technologies

    (5%-Phenyl)-methylpolysiloxane Non-polar Wide range of applications High temperature limits: -60° to 325°C isothermally, -60° to 350°C programmed. -60° to 300°C isothermally, -60° to 320°C programmed for 0.53 mm columns -60° to 260°/280°C…

  • OPTIMA® 1701 Capillary columns for GC Features 14 % cyanopropyl-phenyl – 86 % dimethylpolysiloxane · USP G46 Medium polar phase Special selectivity due to high cyanopropyl content Reference column for structure identification, e.g., in combination with…

  • 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…

  • 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…

  • Application: The 5% phenyl equivalent phase provides a boiling point elution order with a slight increase in selectivity, especially for aromatic compounds. The low bleed characteristics, inertness, and durable nature make it the column of choice for environmental analytes (such as semivolatiles,…

  • Agilent Technologies

    100% Dimethylpolysiloxane Industry standard general purpose column Non-polar Wide range of applications Superior performance of low molecular weight alcohols High temperature limit Bonded and cross-linked Solvent rinsable Wide range of column dimensions …

  • Agilent Technologies

    100% Dimethylpolysiloxane “Boiling point” phase for high temperature simulated distillation Durable stainless steel tubing 430°C upper temperature limit Distillation range of C6 to C110 Low bleed - even at 430°C Bonded and cross-linked Solvent…

  • Accurate quantification of toluene and benzene—including benzene in gasoline containing ethanol or butanol blends. Complete resolution of benzene from ethanol—no compromising coelutions. Enhanced formulation with improved support material and polymers—more robust and reproducible. Column sets…

  • 5% Phenyl Polysilphenylene-Siloxane High temperature General Purpose GC column - suitable for over 80% of all routine analyses performed by gas chromatography Very Low Bleed - ideal for trace analysis Non-Polar Extremely inert Ideal for GC-MS Application Areas: …

  • COL-4032 FULL RANGE H2

  • Linearity for all reference compounds exceeds method requirements. Columns with retention gaps feature Alumaseal connectors to prevent leaks and extend column life. Low column bleed at high temperatures. For glycerin and glycerides analysis, according to ASTM D6584 and EN 14105 methods. …

  • 5% Phenyl Polysilphenylene-siloxane High temperature General Purpose GC column - suitable for over 80% of all routine analyses performed by gas chromatography Very Low Bleed - ideal for trace analysis Non-Polar Extremely inert Ideal for GC-MS Application Areas: …

  • General purpose gravity eluted column having a PTFE stopcock and reinforced beaded top. Column is constructed using MEDIUM WALL TUBING. Glass wool (not supplied) is used to support column packing. Lower end of the column has a round bottom.

  • Chromatography Research Supplies

    Thomas Scientific offers a large selection of ferrules made from PTFE, Graphite, Vespel® and Vespel/Graphite composites. Ferrule sizes refer to the size of the fittings into which they fit; they are not the diameter of the ferrule. (For example, 1/16" ferrules are 1/8" diameter.) …

  • Agilent Technologies

    (35%-Phenyl)-methylpolysiloxane Midpolarity - slightly less polar than DB-35 Inert to active solutes Ideal for confirmational analyses Bonded and cross-linked Solvent rinsable Equivalent to USP Phase G42 Similar Phases: Rtx-35, SPB-35, AT-35, Sup-Herb, DB-35,…

  • HYDRODEX cyclodextrin phases Capillary columns for GC enantiomer separation Features Base material: cyclic oligosaccharides consisting of seven (β-cyclodextrin) or eight (γ-cyclodextrin) glucose units bonded through α-1,4-linkages Regioselective derivatization…

  • LIPODEX® cyclodextrin phases Capillary columns for GC enantiomer separation Features Base material: cyclic oligosaccharides consisting of six (α-cyclodextrin), seven (β-cyclodextrin) or eight (γ-cyclodextrin) glucose units bonded through α-1,4-linkages …

  • material fused silica  Quality Level 100 Agency meets requirements for USP G42 parameter 0-300 °C temperature (isothermal or programmed) Beta value 250 df 0.25 μm technique(s) gas chromatography…

  • Temperature range -60°C to 300/315°C.

  • midpolarity phase; Crossbond 35% diphenyl/65% dimethyl polysiloxane Active basic compounds that otherwise require derivatization, or an alternative analytical technique, can be analyzed on an Rtx-35 Amine column. The tubing surface is chemically altered to reduce tailing of basic compounds,…

  • OPTIMA® 225 Capillary columns for GC Features 50 % cyanopropylmethyl – 50 % phenylmethylpolysiloxane · USP G7 / G19 Medium polar phase Recommended for fatty acid analyses Similar phases: DB-225, HP-225, OV-225, Rtx-225, CP-Sil 43, 007-225, BP225 Max.…

  • Designed for use with Merlin Microseal sealing system; can be used with other septumless systems. Coating bonded to a flexible fused silica core, yielding a more suitable coating on a less breakable fiber. There may be a slight difference in extraction selectivity compared to the same coating…

  • Agilent Technologies

    Capillary ferrules are packaged in dial packs which deliver one ferrule at a time, keeping the others clean and ready for use. The dial packaging has been tested to ensure no out gassing of contaminants, including phthalates. *These ferrules are recommended for use with Agilent GC/MS…

  • Restek Rt-Alumina BOND columns are highly selective for C1–C5 hydrocarbons and separate all saturated and unsaturated hydrocarbon isomers above ambient temperatures. The reactivity of the aluminum oxide stationary phase is minimized, by deactivation with inorganic salts like KCl or…

  • 2,3-di-O-methyl-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…

  • permethylated 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 columns that have pure…

  • Equivalent to USP G1, G2 and G38 phases Temperature range -60°C to 350/400°C

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