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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  • Agilent J&W VF-1ms is a highly inert, nonpolar, 100% dimethylpolysiloxane phase column that provides increased sensitivity for a broad array of applications, particularly for energy, pharmaceutical, and environmental analysis. The column has an ultra-low-bleed specification of 1 pA at 325 °C (30 m,…

  • 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…

  • Agilent Technologies

    Nitroterephthalic acid modified polyethylene glycol High polarity Designed for the analysis of volatile fatty acids and phenols Bonded and cross-linked Solvent rinsable Close equivalent to USP Phase G35 Temperature limits: 40° to 250°C NOTE: Agilent does…

  • Reservoir for use with CG-1199 and CG-1200 columns. Reservoir has a top 35/20 socket joint for use with CG-1201 flow control adapter and the listed size lower ball joint.

  • 5% diphenyl, 95% dimethyl polysiloxane Optimized for PBDE analysis by EPA Method 1614. Short column option resolves BDE-209 3 times faster, with less thermal breakdown. Unique deactivation gives higher BDE-209 response than competitor columns, for greater analytical sensitivity. …

  • Column bleed, measured by ECD, is extremely low at temperatures up to 330°C, which is critical for baking-out the column to remove high-boiling compounds commonly found in pesticide/PCB extracts. An analysis time of less than 10 minutes improves throughput compared to other stationary phases. …

  • 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…

  • Temperature range -60°C to 320/340°C.

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

  • 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,…

  • The Rtx-Volatile Amine column was designed specifically for analyzing volatile amines in difficult matrices, such as water. The unique base deactivation creates an exceptionally inert surface for these sensitive compounds, resulting in highly symmetrical peaks, which allow low detection limits. The…

  • Agilent Technologies

    GC capillary columns are typically wound on 7 inch cages that fit into standard-sized GCs like the 6890. The 6850 GC has a smaller oven which requires the use of columns wound on a smaller cage diameter. Nitroterephthalic acid modified polyethylene glycol High polarity Temperature…

  • Equivalent to USP G1, G2 and G38 phases. Temperature range -60°C to 310/330°C.

  • OPTIMA® 17 MS Capillary columns for GC Features Silarylene phase with selectivity analogue to 50 % phenyl – 50 % methylpolysiloxane USP G3 Medium polar phase with very low bleeding Ideal for ion trap detectors, optimum reference column in combination with a 1 MS or 5…

  • 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.) …

  • 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…

  • Agilent Technologies

    Unique selectivity engineered for optimum resolution of volatiles analysis: U.S. EPA Methods 502.2, 524.2 and 8260 0.45 mm ID columns provide more plates per meter compared to 0.53 mm ID columns for the fewest coelutions for GC method (an industry first)** No subambient cooling required to…

  • Agilent Technologies

    Bonded polystyrene-divinylbenzene based column A PLOT column with polarity between Porapak-Q and Porapak-N Column for C1 to C3 isomers and Alkanes to C12, CO2 , methane, air/CO, oxygenated compounds, sulfur compounds and solvents A PLOT column to replace packed…

  • midpolarity phase; Crossbond trifluoropropylmethyl polysiloxane Column specifically tested for low-bleed performance. 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…

  • 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. …

  • Put an end to frustration about GC capillary column connections! With the novel design of our proprietary UltiMetal Plus Flexible Metal ferrule, you can confidently make leak free column unions to capillary flow technology (CFT) devices. These new metal ferrules fix the problems of column breakage…

  • 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.…

  • 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.

  • Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. Two types of CarboBlack supports are available, CarboBlack B and CarboBlack C. CarboBlack B support, with its higher surface area, can hold up to a 10% loading of a nonsilicone liquid phase.…

  • PerkinElmer

    COLUMN SET MODEL 4001

  • Agilent Technologies

    Least “polar” Alumina phase Aluminum oxide deactivated with KCl Good choice for light hydrocarbon analysis Good resolution of propadiene and butadiene from ethylene and propylene streams Similar Phases: CP-Al2O3/KCl PLOT, Rt-Alumina PLOT,…

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

  • Agilent J&W CP-Wax 58 FFAP CB column is a nitroterephthalic acid-modified, chemically bonded polyethylene glycol phase. It is designed for the analysis of acidic compounds, such as phenols, and underivatized as well as derivatized free fatty acids. Nitroterephthalic acid-modified…

  • Advantages of metal MXT PLOT columns include: Can be made in small coil diameters—perfect for tight spaces. Rugged material withstands rough handling and shock. Designed for robust performance in process GCs and field instruments. Available in 3.5"-coil diameter or…

  • Capillary columns for GC Features Polyethylene glycol 20 000 Da · USP G16 Polar phase Recommended for solvent analysis and alcohols, suitable for aqueous solutions Similar phases: OPTIMA® WAX, DB-Wax, Supelcowax, HP-Wax, HP-INNOWAX, Rtx-Wax, CP-Wax 52 CB, Stabilwax,…

  • polar phase; Crossbond base-deactivated Carbowax polyethylene glycol—for amines and basic compounds Stabilwax-DB columns reduce adsorption and improve responses for many basic compounds, without analyte derivatization or column priming. For different selectivity of basic compounds, or…

  • Agilent Technologies

    Undeactivated tubing or bare fused silica is commonly used for capillary electrophoresis. It can also be used for transfer lines and other applications where inertness is not critical. Agilent Technologies products are intended for sale/shipment within the US only. International customers…

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