Preparative Layer Chromatography description

A good description of all important areas of preparative layer chromatography, theory and a wide range of applications (e. g. the use of PLC for isolation and identification of unknown compounds from the frankincense resin (Ohbanum), strategies for finding marker substances). 

Techniques for thin-layer chromatography jnay use similar solvent systems with either microcrystalline cellulose or silica gel being favoured. Additional solvent systems, for example benzene/methanol/acetic acid or pyridine/ethyl acetate/acetic acid/water are particularly useful for silica gel chromatography. Detailed descriptions of the technique have appeared elsewhere (Bobbit, 1963 Randerath, 1968 Stahl, 1969 Smith and Seakins, 1976), the latter containing a particularly good up-to-date account of the apparatus, materials and techniques used. The use of the technique is particularly facilitated by the availability of ready-prepared plates. 

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