Add time:09/02/2019         Source:sciencedirect.com

Crude PTEROIC ACID (cas 119-24-4), obtained by microbiological degradation of folic acid, has been purified by column chromatography on cellulose CF11, eluting with 0.1 M glycine buffer of pH 10.0, containing 0.15% w/v ascorbic acid and saturated with isoamyl alcohol.

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