脉冲极谱法测定大蒜中微量元素铜

Detection of the micro-copper of allium sativm L.by pulse polarography

用脉冲极谱法测定了大蒜中微量元素铜,其结果为2.04ug/g,回收率99.6%,同时用原子吸收法测定含量为2.10ug/g,二者结果相近,说明极谱法有一定的准确度,且仪器设备简单、速度快,表明该法是一种很好的方法。

In this pape we used the polarograph to detect the micro-copper content of Allium sativum L. The content was 2.04ug/g, and the recovery ratio was 99.6%。And we used the absorption process of atom to detect it, and the content was 2.10ug/g, The two results are very similar. The method of polarography is simple, rapid and accurate, and the results are satisfying。