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Semiautomated, simultaneous assay of thiamine, riboflavin, pyridoxine, and niacinamide in multivitamin preparations

✍ Scribed by Rhys Bryant; F. J. Burger; R. L. Henry; F. B. Trenk

Publisher
John Wiley and Sons
Year
1971
Tongue
English
Weight
316 KB
Volume
60
Category
Article
ISSN
0022-3549

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Simultaneous determination of niacinamid
Simultaneous determination of niacinamide, pyridoxine, riboflavin, and thiamine in multivitamin products by high-pressure liquid chromatography
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A high-pressure liquid chromatographic assay was developed for the determination of four water-soluble vitamins: niacinamide, pyridoxine, thiamine, and riboflavin. The four vitamins are assayed simultaneously in multivitamin products not containing minerals. Thiamine currently is not quantitated in

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## Abstract The control of the enrichment levels in foods is difficult, due mainly to the lack of appropriate analytical methodologies. The amounts of the five B‐group vitamins (nicotinamide, nicotinic acid, ribofla‐vin, thiamin, and pyridoxine) have been determined in enriched Brazilian foods by a