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Automated analysis of riboflavin in multivitamin preparations

✍ Scribed by Omer Pelletier; René Brassard

Publisher
John Wiley and Sons
Year
1974
Tongue
English
Weight
332 KB
Volume
63
Category
Article
ISSN
0022-3549

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Direct determination of niacinamide in m
Direct determination of niacinamide in multivitamin preparations
✍ O. Pelletier; T. A. Campbell 📂 Article 📅 1961 🏛 John Wiley and Sons 🌐 English ⚖ 290 KB 👁 1 views

A simple method for the direct determination of niacinamide in pharmaceutical preparations is described. T h e method involves the reaction of niacinamide in potassium dihydrogen phosphate with cyanogen bromide and barbituric acid. The resulting purple color has a maximum absorbance at 5 5 0 mp. Nia