ICP-MS用于新疆紫草的无机元素初级形态分析及其溶出特性研究

应用电感耦合等离子体质谱技术(ICP-MS)，分析了新疆紫草中20多种无机元素的初级形态;并研究了不同提取溶剂对其溶出特性的影响。结果显示：在消解方法上，高温密封消解较之微波辅助消解(MAP)能更彻底地消解样品，达到分析要求;在溶液中，除了K，Zn以溶解态为主要存在形式外，其余绝大部分元素主要以悬浮态存在;不同提取溶剂的极性与所分析的无机元素密切相关。Mg，K，Ca，Mn，Tl, Co和Pb等7种元素的提取得率与其提取溶剂极性呈完全的正比例关系，其余元素尽管略有差异，但基本上呈线性关系。

Study on Elemental Speciation Analysis and Transference Characteristics of Arnebia Euthroma(Royle)Johnst by ICP-MS

The elemental transference characteristics and primary speciation analysis of Arnebia euthroma (Royle) Johnst were investigated in the present paper. The results showed: sealed digestion at high temperature was more efficient and thorough than microwave-assisted process(MAP) digestion in the preparation of speciation analysis; Most of the elements analyzed, excluding potassium and zinc, exist in particulate speciation in the plant; The transference characteristics of elements were associated with the polarity of extraction solvents. Contents of all 22 elements basically were directly proportional to the polarity of solvents varying from almost no polarity to strong, especially for 7 elements: magnesium, potassium, calcium, manganese, cobalt, thallium and lead.