Gas Chromatography Columns
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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General purpose column having a PTFE stopcock, reservoir of the listed capacity and a top spherical socket joint. Glass wool (not supplied) is used to support the column packing. Column is constructed using MEDIUM WALL TUBING. Can be used as a gravity eluted column or a flash column (as described…
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OPTIMA® WAX Capillary Columns
MACHEREY-NAGELOPTIMA® WAX 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: DB-Wax, Supelcowax, HP-Wax, HP-INNOWAX, Rtx-Wax, CP-Wax 52 CB, Stabilwax,…
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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:…
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Inlet Ferrules, 100% PTFE
Chromatography Research SuppliesThomas 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.) …
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Cyanopropylphenyl Polysiloxane Polar phase EPA volatile organics analysis (EPA 624, 502.2, SW-846 8240/8260) Application Areas: Environmental analyses, volatile organics, alcohol analysis, USP G43 Operating Temperature: 1.0-3.0µm film thickness: 0°C to…
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These application-specific columns for blood alcohol analysis baseline separate all critical compounds—including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol—in less than 2 minutes. Every Rtx-BAC Plus 1 and Rtx-BAC Plus 2 column is qualified with a…
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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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Temperature range -60°C to 300/315°C.
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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…
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These application-specific columns for blood alcohol analysis baseline separate all critical compounds—including ethanol, methanol, acetone, tert-butanol, acetaldehyde, isopropanol, and n-propanol—in less than 2 minutes. Every Rtx-BAC Plus 1 and Rtx-BAC Plus 2 column is qualified with a…
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Ultra 1 & Ultra 2
Agilent TechnologiesUltra 1: 100% Dimethylpolysiloxane Ultra 2: (5%-Phenyl)-methylpolysiloxane Non-polar Bonded and cross-linked Solvent rinsable HP-1 and HP-5 with tighter specifications for retention index and capacity factors Temperature range: -60° to 325°/350°C …
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100% divinylbenzene Porous polymers are unique, highly retentive stationary phases with a wide application range that are able to elute both polar and nonpolar compounds. They are very hydrophobic, so water has no impact on retention times and even elutes as a good chromatographic peak. The…
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HP-1
Agilent Technologies100% 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 …
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GC Capillary Column
Agilent TechnologiesAgilent J&W DB-1 is nonpolar and low-bleed, and operates under high temperature limits. It is an excellent choice for general purpose use in a wide variety of applications. Precision-engineered DB-1 is bonded, crosslinked and solvent rinsable, and is equivalent to USP phase G2. This product is…
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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…
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Tested with a comprehensive test mix to ensure high inertness. Useful for a wide range of applications. Use with most common solvents. Maximum temperature: 325°C. *30- and 60-meter lengths are banded in 5-meter sections. †Recommendation: Cut 60 m guard columns into shorter…
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Untreated Capillaries
MACHEREY-NAGELUntreated capillaries Recommended application: Capillary electrophoresis Preparation of capillary columns Capillary LC applications
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divinylbenzene ethylene glycol/dimethylacrylate Porous polymers are unique, highly retentive stationary phases with a wide application range that are able to elute both polar and nonpolar compounds. They are very hydrophobic, so water has no impact on retention times and even elutes as a good…
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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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Molecular Sieve Columns
RestekMolecular sieve packed columns easily separate permanent gases at above-ambient temperatures. Restek’s R&D chemists have developed a process for preparing molecular sieve packings, which results in excellent batch-to-batch reproducibility. In addition, our molecular sieves are…
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Elite 1301 capillary column 30m x 0.25mm, 0.25µm
PerkinElmerTemperature range -20°C to 280°C Equivalent to USP G43 phase
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Elite-1 capillary column, 15m x 0.25mm, 0.10µm
PerkinElmerEquivalent to USP G1, G2 and G38 phases Temperature range -60°C to 350/400°C
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HP-5ms Ultra Inert
Agilent TechnologiesAgilent J&W HP-5ms Ultra Inert is specifically tested for inertness for active compounds, including acidic and basic compounds, to meet the worldwide drive for lower detection levels. With very low bleed characteristics, bonded and cross-linked HP-5ms Ultra Inert is solvent rinsable and ideal…
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Equivalent to USP G43 phase Temperature range -60°C to 330/350°C
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Porous Polymer Columns
RestekRestek offers a full range of porous polymers, including HayeSep and Porapak polymer packings for analyses of volatile compounds and light solvents.
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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…
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HP-FFAP
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. Nitroterephthalic acid modified polyethylene glycol High polarity Temperature…
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Inlet Ferrules, High Purity Graphite
Chromatography Research SuppliesThomas 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.) …
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Columns Capillary HP-88 100m, 0.25mm id, 0.2um
Agilent Technologies(88%-cyanopropyl) aryl-polysiloxane 250/320°C upper temperature limits High Polarity Designed for separation of cis/trans fatty acid methyl esters Even better separation than DB-23 of cis-trans isomers Similar Phases: CP-Sil 88, SP-2560, SP-2340, SP-2330, BPX-70, BPX-90…
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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…
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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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DB-5
Agilent Technologies(5%-Phenyl)-methylpolysiloxane Non-polar General purpose column Wide range of applications Low bleed High temperature limit: -60° to 325/350°C* Bonded and cross-linked Solvent rinsable Wide range of column dimensions available Equivalent to USP…