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SP-2560 Capillary GC Column

Sigma-Aldrich Supelco

SP-2560 Capillary GC Column• Application: This highly polar biscyanopropyl column was specifically designed for detailed separation of geometricpositional (cis/trans) isomers of fatty acid methyl esters (FAMEs). It is extremely effective for FAME isomer applications.• USP Code: This column meets USP G5 requirements.• Phase: Non-bonded; poly(biscyanopropyl siloxane)• Temp. Limits: Subambient to 250 °C (isothermal or programmed

5.0/5.0
|1 Review

SLB®-IL111 Capillary GC Column

Sigma-Aldrich Supelco

SLB®-IL111 Capillary GC Column for FAME and Petroleum Applications. World’s first commercial column to rate over 100 on our GC column polarity scale. Selectivity most orthogonal to non-polar and intermediate polar phases, resulting in very unique elution patterns. Maximum temperature of 270 ºC is very impressive for such an extremely polar column. Great choice for separation of polarizable analytes (contain double and/or tripl…

4.0/5.0
|1 Review

SLB-5ms Capillary GC Column

Sigma-Aldrich Supelco

SLB-5ms Capillary GC Column 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, pesticides, PCBs, and herbicides) or anywhere a low bleed non-polar column is required. USP Code: Th…

3.7/5.0
|1 Review



Carbon nanohorns, as-grown

Sigma-Aldrich Supelco

Single-walled carbon nanohorns are made of graphene sheets with long cone-shaped tips with the diameters of 2-5 nm and the length of 40-50 nm. Thousands of carbon nanohorns form spherical aggregates of about 100 nm in diameter.

2.3/5.0
|1 Review

SLB-IL60 Ionic Liquid GC column

Sigma-Aldrich Supelco

SLB-IL60 Ionic Liquid Capillary GC ColumnApplication: Modified (deactivated) version of SLB-IL59 provides better inertness. Selectivity more polar than PEG/wax phases, resulting in unique elution patterns. Higher maximum temperature than PEG/wax columns (300 ºC compared to 270-280 ºC). Excellent alternative to existing PEG/wax columns. Also a good GCxGC column choice. Launched in 2012.USP Code: NonePhase: Non-bonded; 1,12-Di(t…

0.0/5.0
|0 Reviews

SLB-IL59 Ionic Liquid GC Column

Sigma-Aldrich Supelco

SLB-IL59 Ionic Liquid Capillary GC Column• Application: Selectivity more polar than PEG/wax phases, resulting in unique elution patterns. Higher maximum temperature than PEG/wax columns (300 ºC compared to 270-280 ºC). Great choice for analysis of neutral and moderately basic analytes. Launched in 2009.• USP Code: None• Phase: Non-bonded; 1,12-Di(tripropylphosphonium)dodecane bis(trifluoromethylsulfonyl)imide• Temp. Limits: Su…

0.0/5.0
|0 Reviews

SUPELCOWAX® 10 Capillary GC Column

Sigma-Aldrich Supelco

SUPELCOWAX® 10 Capillary GC Column• Application: This column is based on one of the most widely used polar phases, Carbowax 20M, and is a polar column suitable for analyses of solvents, fatty acid methyl esters (FAMEs), food, flavor and fragrance compounds, alcohols, and aromatics. Additionally, this column is a great choice when a polar general purpose column is required.• USP Code: This column meets USP G16 requirements.• Ph…

0.0/5.0
|0 Reviews

Equity-5 Capillary GC Column

Sigma-Aldrich Supelco

Equity-5 Capillary GC Column• Application: This popular column is designed for general purpose applications where a non-polar column is required. The low phenyl content provides thermal stability compared to 100% poly(dimethyl siloxane) columns.• 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: -…

0.0/5.0
|0 Reviews

SPB-5 Capillary GC Column

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Molded Thermogreen® LB-2 GC Septa

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Derivatization Reagents for Silylation

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Derivatization Reagents for Acylation

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Derivatization Reagents for Alkylation & Esterification

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Custom Made Packed GC Columns

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

High Capacity Gas Purifier

Sigma-Aldrich Supelco

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.

0.0/5.0
|0 Reviews

Supelcarb HC Hydrocarbon Trap

Sigma-Aldrich Supelco

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.

0.0/5.0
|0 Reviews

Supelco® Helium Purifier for GC/MS

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Chiral Capillary GC Columns

Sigma-Aldrich Supelco

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…

0.0/5.0
|0 Reviews

Omegawax® Capillary GC Columns

Sigma-Aldrich Supelco

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

0.0/5.0
|0 Reviews

SLB-35ms Capillary GC Columns

Sigma-Aldrich Supelco

Application: The 35% phenyl equivalent phase provides a higher polarity option compared to columns containing a lower phenyl content, resulting in a greater retention of polar analytes relative to non-polar compounds. Its selectivity is complementary when paired with SLB-5ms for applications that require dual-column confirmatory analysis, such as for environmental analytes (such as pesticides, PCBs, and herbicides). The low…

0.0/5.0
|0 Reviews