电感耦合等离子体原子发射光谱法同时测定槲寄生中的微量元素

Simultaneous Determination of Trace Elements in Mistletoe by ICP-AES

采用硝酸-双氧水对槲寄生全药及煎煮液进行湿法消解，用电感耦合等离子体原子发射光谱法（ICP-AES）同时测定试样中Cu，Mg，Zn，Mn，Ni，Se，K，Na，Ca和Fe等元素的含量。该法的的加标回收率为91．6％～108．9％，变异系数为0．47％～4．59％，具有良好的准确度和精密度。结果表明：槲寄生中含有丰富的K和Ca元素，Na和Mg的含量也相对丰富，为进一步研究槲寄生的药理提供了科学的数据。

A method for the simultaneous determination of elements Cu, Mg, Zn, Mn, Ni, Se, K, Na, Ca and Fe in mistletoe after HNCh-H2O2 digestion by ICt-AES was studied. The recoveries obtained by standard addition method were between 90. 8% and 112. 8%, while the RSD （n=5） was in the range of 0.47%-4. 59%. The results showed that there were rich K, Ca, Mg and Na in the mistletoe, and offered scientific data for the ulterior study on mistletoe.