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.
Other related products available at Thomas Sci - acids and chromatography vials.
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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…
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Elite-5MS capillary column 60m x 0.32mm, 0.25µm
PerkinElmerTemperature range -60oC to 350 oC Equivalent to USP G27, G36 phases
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Rtx-1 Columns (fused silica)
Resteknonpolar 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. …
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Micropacked GC Columns
RestekIncreased 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…
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CarboBlack Packing Materials
RestekCarboBlack B supports up to 10% loading of a nonsilicone liquid phase CarboBlack C supports up to 1% loading of a nonsilicone liquid phase Graphitized carbon black offers unique selectivity and very little adsorption for alcohol analyses. Two types of CarboBlack supports are available,…
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Deactivated Fused Silica Tubing
Agilent TechnologiesDeactivated tubing can be used as retention gaps, guard columns, or transfer lines. Our standard deactivation process is a phenyl methyl deactivation — the preferred choice for most applications due to its inertness and robustness. Agilent Technologies products are intended for…
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DB-1ms
Agilent Technologies100% Dimethylpolysiloxane Identical selectivity to DB-1 Non-polar Very low bleed characteristics, ideal for GC/MS Improved acid performance compared to standard 100% Dimethylpolysiloxane columns Improved signal-to-noise ratio for better sensitivity and mass spectral integrity …
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Temperature range -20°C to 240/260°C.
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Elite-1MS capillary column, 30m x 0.25mm, 0.25µm
PerkinElmerEquivalent to USP G1, G2 and G38 phases Temperature range -60°C to 350/400°C
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low-polarity phase; Crossbond 5% diphenyl/95% dimethyl polysiloxane Active basic compounds that otherwise require derivatization, or an alternative analytical technique, can be analyzed on an Rtx-5 Amine column. The tubing surface is chemically altered to reduce tailing of basic compounds,…
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DB-Tph 30m, 0.32mm, 0.25um
Agilent TechnologiesSpecifically designed for the analysis of total petroleum hydrocarbons (TPHs), soil analysis, and LUFT Three analyses in one injection: gas range organics, diesel range organics and motor oil Fast run time Bonded and cross-linked Solvent rinsable Agilent Technologies…
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DB-Wax
Agilent TechnologiesGC 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. Polyethylene glycol (PEG) Close equivalent to USP Phase G16 High polarity …
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Capillaries for electrophoresis
MACHEREY-NAGELUntreated capillaries Recommended application: Capillary electrophoresis Preparation of capillary columns Capillary LC applications
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HP-35
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,…
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Tested with a comprehensive test mix, to ensure high inertness Revolutionary deactivation process for superior inertness Analyze active samples accurately; ideal for chlorinated pesticide analysis (reduces endrin breakdown to less than 1%) Maximum temperature: 380°C
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DB-5.625
Agilent TechnologiesEquivalent to a (5%-Phenyl)-methylpolysiloxan Non-polar Specially processed to exhibit excellent inertness for EPA Semivolatiles Methods 625, 1625, 8270 and CLP protocols* Surpasses EPA performance criteria for semivolatiles Inert for base, neutral and acidic compounds High…
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Elite-Siltek Guard, 5m x 0.32mm
PerkinElmerElite-Siltek Guard Columns lengthen the life of the capillary columns.
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CAM
Agilent TechnologiesBase deactivated polyethylene glycol Specifically designed for amine analysis Excellent peak shape for primary amines Replaces HP-Basicwax Similar Phases: Stabilwax-DB, Carbowax Amine Because the CAM is not bonded or cross-linked, we do not recommend solvent rinsing. …
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OPTIMA® 225 Capillary Columns
MACHEREY-NAGELOPTIMA® 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.…
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polar polyethylene glycol deactivation Tested with a comprehensive test mix to ensure high inertness Polyethylene glycol deactivation layer provides optimum wettability for polar compounds Minimize peak splitting when using polar solvents such as methanol or water Compatible with…
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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…
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Elite-1 capillary column, 30m x 0.25mm, 1.00µm
PerkinElmerEquivalent to USP G1, G2 and G38 phases Temperature range -60°C to 350/400°C
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DB-ALC1 And DB-ALC2
Agilent TechnologiesMeets EN14110 standard Reliable blood alcohol analysis Optimized primary and confirmation column pair for U.S. blood alcohol analysis Faster GC run times Improved resolution of key ethanol/acetone peaks Available in 0.32 and 0.53 mm ID Bonded and cross-linked …
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Glass Empty Column, 2mm i.d., 1/4in o.d., 3 ft for AutoSystem GC (on column)
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PerkinElmer Elite-XLB (Specialty phase for GC/MS with exceptionally low bleed) Series Capillary Columns, Length: 30m, Inner Diameter: 0.32mm, Film Thickness: 0.50m, Temperature Limits:30 to 340/360C
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DB-1701p
Agilent TechnologiesLow/midpolarity Exact replacement of HP-PAS1701 Specifically designed and processed for the analysis of organochlorine pesticides ECD tested to assure minimal pesticide breakdown and low ECD bleed Bonded and cross-linked Solvent rinsable Similar Phases: SPB-1701,…
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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…
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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…
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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 Poly(5% diphenyl/95%…
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Similar to CG-1192 but with a sealed in COARSE porosity fritted disc to support column packing. Column is constructed using MEDIUM WALL TUBING. Can be used as a gravity eluted column or a flash column (as described by W.C. Still, M. Kahn and A. Mitra of Columbia University in JOURNAL OF ORGANIC…