Thin layer chromatography is used to analyse mixtures: determine the number, identity, and purity of compounds present in a mixture. This technique can also be used to visualize the progress of a ...

THE principle of this method is that a relatively voluminous sample (50–100 µl.) is easily applied over a large area of chromatographic substrate and can then be swept into a narrow band by an ...

A conditioning process is applied to guarantee consistency from plate to plate, lot to lot, and chemist to chemist. The user can prevent having to retest their sample or risk the compound decomposing ...

MOST methods for characterizing small amounts of oil (for example, 0.1–2.0 mgm.) are based on spectroscopic techniques. When chemical techniques are applicable they are time-consuming. There is a need ...

Thin-layer chromatography (TLC) was widely used in the 1960s and 1970s for pesticide residue analysis, but only to a limited extent since gas–liquid chromatography (GLC) and high performance liquid ...