Gas Chromatography

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Gas Chromatography

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  • Unmodified POLYGOPREP silica

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, SiOH, unmodified for normal phase application Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm,…

  • Silica adsorbents for column chromatography

    MACHEREY-NAGEL

    Silica adsorbents for column chromatography Features Standard silica 60 , pore size ~ 60 Å Pore volume ~ 0.75 mL/g Highly porous, amorphous silicic acid in the form of hard, opalescent particles, prepared by precipitation of water glass with sulfuric acid For higher demands…

  • POLYGOPREP Irregular silica, Octadecyl phases

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, modified for RP application Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30…

  • POLYGOSIL® Irregular silica, Octadecyl phases

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, C18 (ODS) modified for reversed-phase (RP) applications Features Irregular silica for analytical application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available particle sizes 5 µm, 7 µm…

  • Unmodified POLYGOSIL® silica

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, unmodified, SiOH, normal phase Features Irregular silica for analytical application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available particle sizes 5 µm, 7 µm and 10 µm

  • Silica adsorbents for TLC

    MACHEREY-NAGEL

    Silica adsorbents for TLC Pore size 60 Å Pore volume 0.75 mL/g pH 7.0 (10 % aqueous suspension) Silica G Standard grade Particle size 2–20 μm Fe < 0.02 %, Cl < 0.02 % 13 % gypsum as binder Supplied with or without fluorescence indicator…

  • TLC Micro Set M

    MACHEREY-NAGEL

    Materials kit for scientific education This kit is prerequisite for the separations with kits F1, F2 and F3. In addition, it serves as basic equipment for the individual study of further thin layer chromatographic experiments.

  • POLYGOPREP Irregular silica, Butyl phases

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, modified for RP application Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30…

  • Glass Bubble Flow Meters

    Agilent Technologies

    Economical 10 or 100 mL These glass bubble flowmeters provide an economical way to monitor gas flow.

  • Kieselguhr adsorbents for column chromatography

    MACHEREY-NAGEL

    Kieselguhr adsorbents for column chromatography Features Naturally occurring amorphous silicic acids of fossil origin, also known as diatomaceous earth or diatomite; purified for chromatographic applications Compared to silica, kieselguhr has a small surface of low activity →…

  • ADM Flow Meters

    Agilent Technologies

    Accuracy ±3% Operating temperature range: 0 to 45°C for instrument/-70 to 135°C for tubing Calibration traceable to NIST primary standards Measures flow rates from 0.5 to 1000 mL/min Split ratios ADM flowmeters allow most gas measurements with the touch of only…

  • NUCLEODUR® C18 ec bulk packings

    MACHEREY-NAGEL

    NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

  • Unmodified NUCLEODUR® SiOH bulk packings

    MACHEREY-NAGEL

    NUCLEODUR® is a fully synthetical type B silica (silica of 3rd generation) offering highly advanced physical properties: Totally spherical particle shape Outstanding surface microstructure High pressure stability Low metal content NUCLEODUR® as a state-of-the-art silica…

  • Aluminium oxide adsorbents for column chromatography

    MACHEREY-NAGEL

    Features Aluminium oxides (Alox) produced by dehydration of different aluminium hydroxides, e.g., hydrargillite between 400 and 500 °C Activity grade I Particle size 50–200 μm Specific surface (BET) ~ 130 m2/g Available in neutral, basic, acidic

  • Electronic Rechargeable Crimpers and Decappers

    Restek

    These electronic crimpers and decappers have a rechargeable 6.4-volt battery installed. The large battery allows for quick, powerful operation and a faster charge cycle, minimizing downtime. Charging the battery takes thirty minutes to two hours. The universal plug set includes U.S., European, UK,…

  • Vial Rack for Headspace Vials

    Restek

    Securely holds up to 36 headspace vials (fits 6, 10, or 20 mL vials). Vials lock in rack for convenient one-handed cap removal. Openings in the bottom of each well facilitate drainage. Alphanumeric indexing on rack simplifies sample identification. Easy to clean and fully autoclavable.*…

  • 1/16" Tubing Cutter

    Restek

    Produces square, smooth cuts in 1/16-inch tubing Eliminates tubing distortion Cuts hard or soft copper, aluminum, brass, stainless steel, Monel alloy, or titanium Replaceable cutting wheel

  • POLYGOPREP Irregular silica, Octyl phases

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, modified for RP application Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30…

  • Restek ProFLOW 6000 Electronic Flowmeter

    Restek

    Flowmeters that can measure flammable gases are becoming mandatory due to the increased use of hydrogen in chromatography. With its Ex rating, the Restek ProFLOW 6000 meter is designed specifically with explosive and flammable gases in mind. The Restek ProFLOW 6000 is the only flowmeter you…

  • POLYGOPREP Irregular silica, Cyano phases (nitrile)

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, CN (cyano, nitrile) modified Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30…

  • Cellulose adsorbents for column chromatography

    MACHEREY-NAGEL

    Cellulose adsorbents for column chromatography Features Cellulose MN 100: native fibrous cellulose Standard grade Average degree of polymerization 620–680 Fiber length (85 %) 20–100 μm Specific surface acc. to Blaine ~ 6500 cm2/g Residue on ignition < 10000…

  • Tools and general accessories for GC

    MACHEREY-NAGEL

    Diamond file: a useful tool for cutting capillaries and smoothing ends of capillaries. Square capillary ends without protruding particles are especially important for butt connections (e.g., in Valco unions). Magnifying lens: a very versatile tool for any laboratory. In capillary GC it is…

  • Connectors for GC capillary columns

    MACHEREY-NAGEL

    Graphseal ferrules for capillaries: stainless steel ferrules filled with graphite – the ideal sealing material for capillaries The capillary is mounted on a 1/16" exit (detector, injector etc.) with the appropriate ferrule, a nut (with slit) and an adapter. Glass connectors for…

  • POLYGOPREP Irregular silica, Amino phases

    MACHEREY-NAGEL

    POLYGOPREP Irregular silica phases for liquid chromatography, NH2 (amino) modified Features Irregular silica for preparative application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available mean particle sizes 12 µm, 20 µm, 30 µm,…

  • POLYGOSIL® Irregular silica, Octyl phases

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, C18 (ODS) modified for reversed-phase (RP) applications Features Irregular silica for analytical application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available particle sizes 5 µm, 7 µm…

  • Polyamide adsorbents for column chromatography

    MACHEREY-NAGEL

    Polyamide adsorbents for column chromatography Features Polyamide 6 = ε-polycaprolactam Separation mechanism mainly based on hydrogen bonds Available in different particle sizes Recommended application: separation of phenolic compounds (e.g., isolation of natural…

  • Indicating Moisture Trap

    Restek

    Reduces water to less than 10 ppb; indicator changes from yellowish-green to blue at 5% relative humidity Prepurged for fast stabilization Reduces noise from high-sensitivity detectors Heavy-walled glass body prevents oxygen and water infusion 10 µm frit prevents microparticulate…

  • Ultra High Purity Gas Generators

    Parker Hannifin

    Eliminates handling costly, dangerous gas cylinders Reliable source of gas No more cylinder changing Silent operation Simple annual maintenance State-of-the-art, self contained Balston® Lab Gas Generators are a sensible alternative to old technology gas cylinders. They are cost effective…

  • Ferrules for GC

    MACHEREY-NAGEL

    Graphite ferrules provide the highest temperature stability (up to 450 °C). They are reusable when handled with care. We also offer 1/16" graphite ferrules specially designed for Carlo Erba / Fisons or for Agilent gas chromatographs. Vespel ferrules with 40 % graphite. Temperature…

  • Gas and Vapor Sampler

    SGE

    The Gas and Vapor sampler enables spot collection of environmental gas samples or low pressure gas streams in 200cm3 impervious resealable bags. Gas and vapor collection Resealable sample bags Ideal for field analysis

  • Universal Angled “Y” Press-Tight Connectors

    Restek

    Split sample flow—perform dual-column confirmation analysis with a single injection Split column flow to two detectors Inlet and outlet ends match column curvature to alleviate connection strain

  • POLYGOSIL® Irregular silica, Amino phases

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, NH2 (amino) modified Features Irregular silica for analytical application, pH stability 2–8 Available pore sizes 60, 100, 300 and 1000 Å Available particle sizes 5 µm, 7 µm and 10 µm

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