Gas Chromatography Products & Reviews

SPB-5 Capillary GC Column• 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% dimethyl siloxane)• Temp. Limits: ≤0.32 mm I.D., • Temp. Limits: ≤0.32 mm I.D., ≥2 μm: -60 °C to 300 °C (isothermal or programmed)• T…

The Perfect Combination of Low Bleed, Thermal Stability, and Easy Puncturability!Molded Thermogreen LB-2 septa are manufactured from high quality, low bleed material using the same exclusive LB-2 rubber formulation that chromatographers are accustomed to using. The difference is that molded septa, unlike traditional die-cut septa, offer easier installation and better sealing inside the injection port. This is because our liqui…

Supelco provides high quality derivatization reagents for silylation.Silylation is the most widely used derivatization technique. Functional groups that present a problem with gas chromatogaphy detection - hydroxyl, carboxylic acid, amine, thiol, phosphate - can be derivatized by silylation reagents. Silylation involves replacement of the acidic hydrogen with an alkylsilyl group, for example, -SiMe3.Silylation derivatives are…

Supelco provides high quality derivatization reagents for acylation.Acylation, an alternative to silylation, allows the conversion of compounds with active hydrogen such as -OH, -SH, and -NH into esters, thioesters and amines, respectively. A very popular example of this method is the insertion of perfluoracyl groups to enable electron capture detection (ECD). Carbonyl groups adjacent to halogenated carbons enhance the ECD res…

Supelco provides high quality derivatization reagents for akylation and esterification.Alkylation is the replacement of the active hydrogen in R-COOH, R-OH, R-SH, R-NH, R-NH2, R-CONH2, R-CONH-R′ with an alkyl group, or sometimes an aryl group.Esterification is the first choice for derivatization of carboxylic acids and other acidic functional groups. Acids are reactive compounds, and are too polar to be well separated by gas c…

Supelco’s complete line of stock and custom packed GC columns are configured to fit most commercially available GC instruments.Supelco® has been the leader in packed GC column technology for over 40 years. Should you not be able to locate a stock item to fit your needs, our custom capabilities allow us to manufacture columns and packings to your specifications. In addition we also carry hard-to-find tools specifically designed…

High Capacity Gas Purifiers (Remove Moisture and Oxygen)The best purifier choice for removing moisture and oxygen from carrier gas streams is our High Capacity Gas Purifier. It consists of three parts:• Clam-shell oven• Replaceable heating elements• Replaceable converter tube.A convenient starter kit contains all three items for new installations.

Supelcarb® is Back by Popular Demand!Supelco® is pleased to welcome the Supelcarb HC Hydrocarbon trap back to our line of in-line gas purifiers! Supelcarb adsorbent has the greatest trapping ability of hydrocarbons per gram of adsorbent (twice that of activated charcoal). These traps are the best traps available for removing hydrocarbons and other organics from carrier, fuel, air and other gas streams.

Specialty In-Line Purifier for GC-MS HeliumThe most sensitive GC-MS instruments require a steady stream of ultra-high purity (99.99999%) helium for optimal performance. To achieve this level, a specialty purifier is required. These purifiers contain multiple adsorbent beds for the removal of all critical contaminants. Additionally, the adsorbent materials are packed into the cartridge under helium to ensure no other gas off-g…

Cyclodextrin-based DEX and Astec CHIRALDEX phases are stable, high boiling liquids and make effective CSPs for enantiomer separations by GC. The two lines exhibit complementary selectivity.Cyclodextrins are macromolecules composed of 6 or more D(+)-glucose residues bonded through α-glycosidic linkages. They are classified according to the number of glucose residues they contain: α-cyclodextrins (six residues), β-cyclodextrins…

ChromSquare GC/GC is data analysis software for comprehensive gas chromatography (GC/GC). GC/GC analysis uses two different types of columns for higher resolution. This makes it possible to analyze samples with a large number of components that are difficult to identify using regular GC or GC/MS systems, due to overlapping peaks. ChromSquare software enables qualitative and quantitative analysis in a single window. Moreover,…

On-line sampling module for the UNITY-xr™ thermal desorber

Thermal desorption sorbent sampling tubes for air sampling. Backed up by fast and friendly service, Markes’ tubes provide optimum sampling and analytical performance. Our range includes everything from cost-effective packages of industry-standard tubes to the last word in sorbent tube innovation. Features: Our industry-standard (3½-inch (89 mm) long x ¼-inch (6.4 mm) o.d.) sorbent tubes are available in stainless stee…

Accurate and repeatable gas flow measurement. Accurate and repeatable gas flow measurement is fundamental to obtaining good results from your thermal desorption-gas chromatograph. The traditional bubble flowmeter, relying as it does on the reaction time of the operator, is a potential source of error.The digital flowmeter eliminates this source of error and makes gas flow easement easier and more accurate. The flowmeter allow…

This column allows highly reproducible analyses of fatty acid methyl esters (FAMEs), specifically the omega 3 and omega 6 fatty acids. It is tested to ensure reproducible FAME equivalent chain length (ECL) values and resolution of key components. Column Details: Phase: Bonded; poly(ethylene glycol) USP Code: G16 Length: 15, 30 m ID: 0.10, 0.25, 0.32, 0.53 mm df: 0.10, 0.25, 0.50

910 GC with FID & TCD detectors and built-in air compressor. 910 GC with FID & TCD detectors 30 Meter column, and built-in air compressor. In the lab, the 910-series GCs perform routine industrial analyses and complicated research separations easily, generating accurate and reproducible results. Designed to be durable and portable, the compact 310-series is ideal for operation in the field, E.P.A. and A.S.T.M. methods can be…

The Gass-less GC is an Educators best friend. It needs no gases thanks to it's CCD detector. It come with free software and classroom experiments all for under 5K. Our 310 Gas-less Educational GC system is ideal for undergraduate chemistry classes where the principles of gas chromatography are demonstrated on the same equipement students will encounter in industry. The Gas-less Educational GC includes a built-in "whisper quie…

ASTM 6584 BioDiesel GC System For the laboratory or field portable. The BioDiesel GC System is configured to perform ASTM 6584 ( residual free and bound Glycerin in BioFuel ). Analysis takes about 25 minutes and is simple enough for an untrained operator to perform in the lab or in the field. The included PeakSimple Data System displays the calibrated results directly without off-line calculations. This gas chromatograph sati…

The Gass-less GC is an Educators best friend. It needs no gases thanks to it's CCD detector. It come with free software and classroom experiments all for under 5K. Our 310 Gas-less Educational GC system is ideal for undergraduate chemistry classes where the principles of gas chromatography are demonstrated on the same equipement students will encounter in industry. The Gas-less Educational GC includes a built-in "whisper quie…

For laboratory or mobile field testing where space and versatility are critical, choose the Environmental GC system. Equipped with Method 5030 or 5030/5035 compliant Purge & Trap, PID and FID/DELCD detectors. For laboratory or mobile field testing where space and versatility are critical, choose the Environmental GC system. Equipped with Method 5030 or 5030/5035 compliant Purge & Trap, PID and FID/DELCD detectors, it will eas…

Medical Cannabis Gas chromatograph for Cannabinoid percentage analysis. With the research being done by the CBN project among other, researchers are learning new things about the non-physcoactive cannabinoids and how they affect certain illnesses. The future of medical cannabis will present many options for the patients but testing will have to be done to determine which plants are producing which quantities of cannabinoids.…

The Mudlogging GC system is designed to provide a continuous reading of total hydrocarbons in a gas stream while periodically performing a chromatographic separation. The Mudlogging GC system is designed to provide a continuous reading of total hydrocarbons in a gas stream while periodically performing a chromatographic separation of the sample to determine the exact composition of the sample stream. The sample gas stream (at…

The Model 302 is available mounted inside the 910, and 310 GCs, or it can be mounted in a separate box for connection to other manufacturers' GC or HPLC detectors. The Model 302 is available mounted inside the 910 and 310 GCs, or it can be mounted in a separate box for connection to other manufacturers' GC or HPLC detectors. The Model 302 data system consists of PeakSimple chromatography software for Windows, and a six channe…

The Flex Series GC Autosampler offers a new low cost with a high level of automation for today’s GC and GC/MS laboratory. Designed with liquid injection capability with an upgrade path to Headspace and or SPME analysis, the Flex is designed to allow the user to unlock the true power of a fully functioning XYZ robotic platform with its easy to use software to build methods and process samples. Designed with Machine to Machine…

EST is a leading supplier and innovator of purge and trap systems. Through conversations and partnerships with our customers, the Centurion™ delivers maximum sampling flexibility at an affordable price. Customers wanted more reliability, internal standard programmability, high sample throughput solutions and an easy to use interface. The Centurion™ delivers on all of these and more.