Chromatography
|Thin Layer Chromatography (TLC)|
|High Performance/High Pressure Liquid Chromatography (HPLC)|
|Fast Protein Liquid Chromatography (FPLC)|
Thin Layer Chromatography (TLC)
| Catalog No. | Description |
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| Analtech 02011 |  |
Silica Gel: Silica Gel G & GF UNIPLATES are the most widely used silica gel TLC plates. No organic substances are added to these products, thus making them compatible with sulfuric acid charring visualization.These plates are commonly scraped from the glass backing to isolate separated components for other analytical procedures. They are compatible with all organic solvents, however, they are not recommended for use in systems containing greater than 20% water because of the solubility of the gypsum binder in aqueous solutions. (For water tolerance see the GHL & GHLF series of plates.)The "G" stands for Gypsum and indicates that calcium sulfate hemihydrate (CaSO4·1/2H2O), a refined form of gypsum, has been included in the adsorption formulation. Gypsum functions as a binder, improving the cohesion of the adsorbent particles and increasing the adhesion of the layer to the glass substrate.The "F" indicates the presence of a short wave UV indicator that is fluorescent at 254 nm.· Fluorescent indicator has green fluorescence at 254 nm· Soft Layers with gypsum binder enable easy scraping of bands from plate· G & GF layers contain no organic materials. |
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| Baker-flex 4474-04 |
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Cellulose PEI-F Sheets: Ready-to-use plastic sheets, 50 x 200 mm or 200 x 200 mm, with absorbent coating, which is abrasion-resistant and highly uniform; are easily cut to desired size and allow sample fraction to be cut rather than scraped. The silica gel and aluminum oxide sheets have coating approximately 200 microns (0.2 mm) thick, affording considerably larger sample capacity than thinner coatings commonly used for flexible TLC plates. Lightweight plastic substrate is unbreakable and resists attack by reagents and solvents. Offered with a variety of absorbent coatings, with and without binder and indicator which fluoresces under 254 nm radiation. Coatings are of high purity silica gel, aluminum oxide or cellulose powders. The inert binder and indicator used permit sulfuric acid heat treatment of silica gel and aluminum oxide chromatograms without charring. Contain inert binders. Coating thickness of approximately 100 microns (0.1 mm) .Contain no inert binder. Sheets with suffix “F” contain fluorescent indicator |
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| Whatman 4861-820 |
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Silica Gel: Adsorption TLC Plates. Silica Gel, 10-12um particle size. For normal phase analytical TLC separations of moderate to strong polar compounds. With fluorescent indicator. Pore Size: 60A. Layer Thickness: 250um. Plate Size: 20x20cm. Quantity: 25 |
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| EMD Chemicals 16834-2 |
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TLC Sheets:
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EMD Chemicals |
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TLC Sheets:
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| EMD Chemicals 5534-3 |
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TLC Sheets :
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| Analtech 06031 |
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TLC Plate: These plates are coated with AVICEL microcrystalline cellulose manufactured by the American Viscose division of FMC Corp. The adsorbent consists of regenerated alpha cellulose particles of nearly spherical shape and 50 micron mean diameter. Avicel F 250 um 5x20cm (25 plates/box). |
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| EMD Chemicals 5729-6 |
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TLC Plates :
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| Baker 7013-04 |
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TLC Plate: Precoated Glass Plate - Octadecylsilane (C18) Reversed Phase Bonded to SilicaGel (approx. 20-µm Particle Size), 200-µm Hard-surfaced Analytica For Laboratory, Research or Manufacturing Use. BAKER Pre-Coated Hard Layer TLC Plates are convenient and reliable for thin layer chromatography. Plates are sealed to exclude moisture and have a convenient hard surface for writing and ease of handling. The package contains plates coated with Reversed Phase, Octadecyl Silica (C18) Si-C18F (200 um Analytical Layer) with a fluorescent indicator.
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| Sigma-Aldrich Z148687-4EA |  |
TLC Plate: Thin-layer chromatography (TLC) plates for adsorption, partition, and ion-exchange techniques. Six media choices with glass, polyester, and aluminum backings. Silica-based adsorbent layers in Sigma-Aldrich TLC plates incorporate a polymeric binder; highly purified silica gel plates incorporate a gypsum/polymer binder.
Silica gel - for weakly to strongly polar separations, pore size 60 Å.
High purity silica gel - acid washed for separation of aflatoxins.
Cellulose - for partition chromatography, (SigmaCell Type 100 Cellulose).
Cellulose PEI - for separation of weak anions (amino acids, peptides) PEI plates may turn slightly yellow, affecting separation. Pre-develop plates in distilled water to minimize yellow color.
Chiral silica - for separation of optically active isomers by ligand exchange, pore size 60Å. |
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