等离子体发射光谱法测定食品级磷酸三钙中铬的含量

Determination of chrome in food-grade calcium phosphate by plasma emission spectrometry

采用等离子体发射光谱法测定了食品级磷酸三钙中的铬含量。该方法具有操作简单、快速、准确度,精密度高,检出限低等优点。回收率为92.86%,9次测定的RSD为4.54%。

The chrome in food-grade calcium phosphate was determined by plasma method is simple and rapid, and has the advantages of high accuracy, high limit. The recovery is 92.86% and RSD is 4.54% （n=9）. emission spectrometry, The prescision and low detection