铁(Ⅱ)-邻二氮菲-CPB体系分光光度法测定抗坏血酸  

Determination of Ascorbic Acid in Pharmaceutical Products with Iron(Ⅲ) O Phenanthroline System by Spectrophotometry

作　　者：安哲[1] 鲁伟君[1] 朱玲[1] 

机构地区：[1]哈尔滨医科大学基础医学院化学教研室

出　　处：《中国公共卫生》1998年第6期356-357,共2页Chinese Journal of Public Health

摘　　要：基于抗坏血酸还原Ｆｅ（Ⅲ）－邻二氮菲为桔红色的铁（Ⅱ）－邻二氮菲的反应，研究了在阳离子表面活性剂－溴代十六烷基吡啶（ＣＰＢ）水溶液中分光光度法测定抗坏血酸的方法。用于实际样品中抗坏血酸含量的测定，结果令人满意。This paper is based on the redox complexation reaction between Fe(Ⅲ) and ascorbic acid,the resulting Fe(Ⅱ) reacts with o phenanthroline to from the orange red coloured ferrion chelate complex,and studies measuring the absorbance of this complex with cerylpyridinium bromide.The method is simple and rapid.

关 键 词：分光光度法 抗坏血酸 维生素C 测定 

分 类 号：R977.23[医药卫生—药品] R927.2[医药卫生—药学]