比色法快速检测药用胶囊铬限量

目的 建立一种简便而快速判定药用胶囊中铬限量的方法.方法 选择湿法消解法处理胶囊,加入显色剂二苯碳酰二肼发生显色反应,与标准铬对照液比较,判定其铬含量是否超标.结果 比色法与药典规定的原子吸收光谱法检测结果相符.结论 比色法能简便而快速判定药用胶囊中铬含量是否超标.

Fast Detecting Chromium Quantity of Officinal Capsules by the Method of Colorimetry

ObjectiveTo build a method which is able to detect the chromium quantity of officinal capsules in a fast and convenient way.MethodUsing wet digestion to deal with capsules and after adding the chromogenic agent,DPCI,the prepared solution is compared with the standard chromium solution so as to decide whether the chromium quantity is above-norm.ResultsThe outcome of colorimetry is identical with that of atomic absorption.ConclusionColorimetry is able to detect in a fast and convenient way whether the chromium quantity of officinal capsules is above-norm.