Gas Chromatography Columns

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Attention Thomas Scientific Customers

Due to current pandemic, lead times for PPE items are longer than what is listed on our website. Please expect shipping delays of all PPE products during this time.

  • midpolarity Crossbond phase 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…

  • 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…

  • 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,…

  • 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. …

  • Inlet Ferrules, 100% PTFE

    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.) …

  • proprietary Crossbond diphenyl/dimethyl polysiloxane phase MXT-Volatiles columns were the first columns designed specifically for analyses of the 34 volatile organic pollutants listed in U.S. EPA Methods 601, 602, and 624. With these columns, you can quantify all compounds listed in these…

  • Please call your local office for configurable column choice.

  • DB-1701

    Agilent Technologies

    (14%-Cyanopropyl-phenyl)-methylpolysiloxane Low/midpolarity Bonded and cross-linked Solvent rinsable Exact replacement for HP-1701 Similar Phases: DB-1701: SPB-1701, CP-Sil 19 CB, Rtx-1701, BP-10, OV-1701, 007-1701, ZB-170

  • 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,…

  • 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…

  • 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…

  • Reservoirs for use with CG-1188 and CG-1189 chromatography columns. Reservoir has a top 24/40 standard taper outer joint for use with CG-1191 flow control adapter and the listed size lower inner joint.

  • Polyethylene glycol (PEG) High polarity Lower temperature limit of 20°C is lowest of any bonded PEG phase; improves resolution of low boiling point analytes Column-to-column repeatability Bonded and cross-linked; solvent rinsable

  • Column Nuts

    Agilent Technologies

    Agilent MS interface column nuts (or transfer line nuts) are manufactured from a softer metal than the transfer line interface. This is to prevent stripping of the transfer line threads and costly repairs. Add a few MS interface column nuts to your next order and keep spares on hand.

  • 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…

  • Similar to CG-1186 but with a sealed in COARSE porosity fritted disc to support column packing. Lower end of the column has a round bottom. Column is constructed using MEDIUM WALL TUBING.

  • 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: …

  • eCl@ss 32119290 Application: This non-polar general purpose column provides primarily a boiling point elution order with a slight increase in selectivity, especially for aromatic compounds. USP Code: This column meets USP G27 and G36 requirements. Phase: Bonded …

  • In the past it was necessary to use Press-fit connectors with specific dimensions to connect columns of those dimensions. Modern Press-fit connectors are “laser-milled” to provide highly reproducible taper angles throughout the length of the Press-fit insuring an excellent seal. Now the…

  • 60% Vespel® / 40% Graphite Ferrules (VGS)

    Chromatography Research Supplies

    Reusable Upper temperature limit of 400°C Preferred for vacuum and high pressure. Recommended for MS/GC. One piece design requires no back ferrule.

  • 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.…

  • 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.

  • 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:…

  • 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…

  • 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. …

  • PAG Capillary GC Column

    MilliporeSigma

    Application: This column fills the polarity space between a 50% phenyl substituted column and a classical wax-type column, due to its polarity being slightly lower than a wax-type column. It is well suited for analyses of alcohols. USP Code: This column meets USP G18 requirements. …

  • An economical metal column should be used for less demanding applications where the inertness of glass is not required. This column fits Agilent 5880, 5890, 6890, 7820, and 7890 (configuration A, on-column injection, all detectors except TCD). In packed columns, the carrier gas percolates…

  • Extend column lifetime. Excellent inertness—obtain lower detection limits for active compounds. Sharper chromatographic peaks by utilizing retention gap technology. Maximum temperature: 360°C

  • Crossbond 5% diphenyl/95% dimethyl polysiloxane—optimized for hydrocarbon analysis

  • proprietary Crossbond phase 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…

  • midpolarity proprietary phase The Rxi-PAH GC columns were designed by Restek with a higher phenyl-content stationary phase that provides unique selectivity to separate important polycyclic aromatic hydrocarbons (PAH) for food safety that cannot be distinguished by mass spectrometry. Even…

  • proprietary Crossbond phase Improved resolution and faster analyses, compared to 1701 or phenyl phases, make these the pesticide columns of choice. Rtx-CLPesticides columns are specially designed to overcome the coelutions and analyte breakdown typically encountered in chlorinated pesticide…

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