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METHOD FOR SIMULTANEOUS QUANTITATIVE ANALYSIS OF WATER-SOLUBLE VITAMINS IN MIXED VITAMIN PREPARATION
METHOD FOR SIMULTANEOUS QUANTITATIVE ANALYSIS OF WATER-SOLUBLE VITAMINS IN MIXED VITAMIN PREPARATION
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机译：混合维生素制备中水溶性维生素的同时定量分析方法
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摘要
PURPOSE:To enable the quantification of water-soluble vitamins in a mixed vitamin preparation by one analysis, by subjecting the mixed vitamin preparation to an ion-pair chromatograph using a mobile phase consisting of a polar solvent, a phosphate buffer solution and an ion-pair reagent and subsequently analyzing the eluate by a fluorescent method using o-phthalaldehyde as a fluorescent reagent. CONSTITUTION:The simultaneous quantitative analysis of water-soluble vitamins in a mixed vitamin preparation can be rapidly performed with high accuracy by combining an ion-pair chromatograph method using a mobile phase consisting of a polar solvent, a phosphate buffer solution and an ion-pair reagent with a pantenol detection method according to an ortho-phthalaldehyde fluorescent method optimum to said mobile phase. As the polar solvent, methanol is especially pref. and, as the phosphate buffer solution, one with a phosphate-potassium concn. of 0.01-0.02M and pH3-3.5 is especially pref. As the ion-pair reagent, sodium pentasulfonate is especially pref.
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