摘要
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。
The elemental transference characteristics and primary speciation analysis of Arnebia euthroma （Royle） Johnst were investigated in the presentpaper. 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.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
2007年第2期378-382,共5页
Spectroscopy and Spectral Analysis
基金
国家自然科学基金重点项目(20235020)
江西省农业科技攻关重点项目资助
关键词
新疆紫草
元素初级形态分析
ICP-MS
溶出特性
Arnebia euthroma （Royle） Johnst
Primary elemental speciation analysis
ICP-MS
Transference characteristics
