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- W1972916441 abstract "A new chemical approach to the assay of synthetic folic acid has been investigated. Folic acid is cleaved with bisulphite to give a pteridine fraction and p-amino-benzoylglutamic acid. Acid hydrolysis and subsequent esterification converted the aromatic amine to ethyl p-aminobenzoate. This ester, when analysed by gas chromatography (g.l.c.), gave consistent yields averaging 49% from 50 to 1000 μg of folic acid. The recovery being predictable, the percentage yield can be used as a correction factor for unknown samples. The present procedure can be used for synthetic folic acid." @default.
- W1972916441 created "2016-06-24" @default.
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- W1972916441 date "1974-12-01" @default.
- W1972916441 modified "2023-09-26" @default.
- W1972916441 title "An approach to the chemical analysis of folic acid: Gas chromatography of a degradation product from synthetic folic acid samples" @default.
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- W1972916441 doi "https://doi.org/10.1002/jsfa.2740251211" @default.
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