Original scientific paper

The Determination of Individual Components in »B Complex« Dragees

Z. Klefin ; Analytical Department, »Pliva« Pharmaceutical and Chemical Works, Zagreb, Croatia, Yugoslavia
K. Šumanović ; Analytical Department, »Pliva« Pharmaceutical and Chemical Works, Zagreb, Croatia, Yugoslavia

Abstract

A method for determination of individual B vitamins in B complex dragees is described . Aneurine and riboflavine are determined photocolorimetrically. Nicotinamide is extracted with chloroform and titrated with O.1 N HClO4 in dioxane. Ca-panfothenate is determined complexometrically. p-Aminobenzoic acid is extracted with ether, and diazotated with 0.01 N NaNO2. Pyridoxine is determined by potentiometric titration of total chlorine (Aneurine HCl + Pyridoxine · HCl), after which the chlorine bound to aneurine is subtracted and pyridoxine · HCl calculated.

Keywords

Hrčak ID:

245535

URI

https://hrcak.srce.hr/245535

Publication date:

10.10.1958.

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