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Determination of Ascorbic Acid in Vitamin C Tablets and Green Pepper, Cuke by Coulometric Titration
Author(s): 
Pages: 44-46
Year: Issue:  4
Journal: GUANGDONG TRACE ELEMENTS SCIENCE

Keyword:  库仑滴定法Vitamin C片黄瓜青椒抗坏血酸;
Abstract: 建立了以1.0 mol·L-1碘化钾和1.0 mol·L-1醋酸混合液作为电解液的恒电流库仑滴定法测定抗坏血酸含量的方法.结果表明,方法的回收率在98.3%~100.8%之间,RSD在0.21%~0.56%(n=3).该法可直接用于Vitamin C片及黄瓜、青椒等样品中抗坏血酸含量的测定,方法简便灵敏,结果令人满意.
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