The term liquid chromatography (LC) refers to a class of physicochemical methods which are used to separate and quantify compounds in a sample. LC is made up of a liquid mobile phase, which carries ...

THE surface of filter paper, in contact with water, has a slight negative charge 1, and this may account for the non-adsorption of certain colloidal electrolytes such as dyes of the ‘acid’ type, when ...

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PARTITION chromatography on paper 1 has not hitherto been reported for the analysis of riboflavine, its nucleotides and derivatives. However, ‘Collidine', and a butyl alcohol-acetic acid mixture ...