微波高压消解HG-ICP-AES法测定不同品种麦冬的微量元素

用微波高压消解技术处理样品，采用氢化物发生-电感耦合等离子体-原子发射光谱(HG-ICP-AES)法对不同产地的同属不同种的百合科植物浙麦冬及川麦冬的镍，锌，锰，铜，镁，铁，钙和铅等无机元素进行了分析测定。该方法的加标回收率为97.8%～102.5%，RSD＜4.0%，具有良好的准确度和精密度。结果表明，麦冬中的铁含量较高，而锌含量浙麦冬比川麦冬高近一倍。此测定结果可为探讨中药中微量元素含量与其药效的相关性提供科学数据。

Determination of Trace Elements in Radix Ophiopogonis by HG-ICP-AES

In this paper,a method of microwave digestion technique for the contents determination of trace elements Ni,Zn,Mn,Cu,Mg,Fe,Ca and Pb in radix ophiopogonis by hydride generation inductively coupled plasma atomic emition spectrometry(HG-ICP-AES) was reported.Its recovery ratio obtained by standard addition method ranged between 97.8% and 102.5%,and its RSD was lower than 4.0%.The results of the determination show that radix ophiopogonis is rich in the inorganic elements such as Fe,and the content of Zn in radix ophiopogonis of Zhejiang is much higher in radix ophiopogonis of Sichun.The result will provide scientific data for the study on the elements in radix ophiopogonis and on their relativity of medicine efficacy.