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MACHEREY-NAGEL Gas Chromatography

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  • 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 →…

  • TLC Micro Set F1

    MACHEREY-NAGEL

    This kit contains all chemicals required for the separation of: Amino acids (test mixture, consisting of alanine, arginine, tryptophan and valine) Amino acids in urine Heavy metal cations copper(II) and manganese(II) For the separations with kit F1, the materials kit TLC…

  • Florisil® adsorbent for column chromatography

    MACHEREY-NAGEL

    Florisil® adsorbent for column chromatography Features Hard granular magnesia silica gel: MgO 15.5 ± 0.5 % · SiO2 84.0 ± 0.5 % · Na2SO4 ≤ 1.0 % 60/100 mesh Typical application: sample preparation (SPE); clean-up of pesticide residues, separation of chlorinated…

  • 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…

  • 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…

  • 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…

  • TLC Micro Set A

    MACHEREY-NAGEL

    This kit contains all chemicals and accessories for the following experiments: Separation of a mixture of fat-soluble / lipophilic dyes (test dye mixture 1): butter yellow, indophenol, sudan blue II, sudan red G Separation of a mixture of anthraquinone dyes (test dye mixture 2): blue 1,…

  • TLC Micro Set F3

    MACHEREY-NAGEL

    This kit contains all chemicals required for: Separation of analgetics (pain relievers) Drug analysis as shown for cinchona bark For the separations with kit F3, the materials kit TLC micro-set M is prerequisite.

  • 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…

  • 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

  • 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…

  • TLC Micro Set F2

    MACHEREY-NAGEL

    This kit contains all chemicals required for the analysis of: Edible fats Fats and cholesterol in blood For the separations with kit F2, the materials kit TLC micro-set M is prerequisite.

  • 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…

  • 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…

  • 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…

  • 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

  • POLYGOSIL® Irregular silica, Dimethylamino phases

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, N(CH3)2 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

  • POLYGOSIL® Irregular silica, Butyl 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…

  • POLYGOSIL® Irregular silica, Cyano phases (nitrile)

    MACHEREY-NAGEL

    POLYGOSIL® Irregular silica phases for LC, CN (cyano, nitrile) 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

  • NUCLEODUR® C18 HTec 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…

  • Polyamide adsorbent for TLC

    MACHEREY-NAGEL

    Polyamide adsorbent for TLC Polyamide 6 = nylon 6 = perlon = ε-polycaprolactam

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