Determination of nicotinic acid and riboflavin in multi‐vitamin tablets
✍ Scribed by Feinstein, Louis ;Scott, William E.
- Publisher
- Elsevier
- Year
- 1947
- Weight
- 260 KB
- Volume
- 36
- Category
- Article
- ISSN
- 0095-9553
No coin nor oath required. For personal study only.
📜 SIMILAR VOLUMES
## 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
Quantitative recovery of dehydrocholic acid from the tablets can be accomplished by first extraction with chloroform and subsequent titration as given in the U.S.P. XVI. Results are reported to indicate that the residue obtained is of pure acid.
I 10 20 30 , , . I 10 20 30 Figure 2-Chromutogrcim of fritn~~thylsilyl dericutice o f neonrycitr wirh: ( n ) proper unroiirr/ of trimi~fliylsilylrlielietlrglritnirrc~. urrd ( h ) e.xcess /rimetliyl.~ilpldi~~tlrylunririe. DlSCIJSSlON k a u s c of the many potential sources of difliculties, strict ad