泰山白首乌中微量金属元素的测定

THE DETERMINATION OF TRACE METAL ELEMENTS IN THE ROOT OF CYNANCHUM BUNGEI DECNE OF MOUNT TAI

用原子吸收光谱法测定了泰山白首乌和何首乌的干品、药液和药渣中 8种微量元素的含量 ,计算了它们的溶出率和残留率 ,探讨了中草药中微量元素的溶出规律。结果表明 :泰山白首乌和何首乌的干样三次浸出液中 8种微量元素的总溶出率分别为 38%～ 6 2 %和 4 2 %～ 6 3%。

The content of 8 kinds of trace metal elements which exist in the liquor,the marc and the dry sample of the root of Cynanchum Bungei Decne of Mount Tai and the Polygonum multiflorum Thunb had been determined by the atomic absorption spectrum method. The yield of dissolvation and retention of 8 kinds of trace metal elements were calculated and the regularity of dissolving the trace elements of the Chinese herbal medicine were studied.The result shows that the total dissolving yields of eight trace elements in three dissolved solution were reached up to 38%～62% and 42%～63% for Cynanchum bungei Decne and Polygonum multiflorum Thunb respectively.