摘要
试验了含难熔组分的岩石样品的分解方法、熔剂用量，以及溶液中可溶盐量的控制和标准系列的熔剂匹配等问题；分别采用Ｒｅ、Ｒｈ和Ｉｎ作内标，解决了基体效应及其基体导致的灵敏度漂移的影响，实现了不经分离富集直接用ＩＣＰ－ＭＳ法测定岩石样品中３４个痕量元素。方法测定限０．０１～５μｇ／ｇ，ＲＳＤ（ｎ＝１０）为２．６％～１３％，已应用于地质试样分析，岩石标样分析结果与标准值相符。
A method is presented for the simultaneous determination of up to 34 elements,includingNb,Ta,Zr,Hf,Th,U,Rb,Cs,Sr,Ba,Ga,V,Cr,Co,Ni,Zn,Cu,Mn,Ti and the rare earthdements,without the use of preliminary separation and concentration. Experiments wereperformed on the decomposition of samples,the quantity of flux, the control of the dissolvedsalts in the analyte solution,and the measures to match the standard with the flux. Re, Rh andIn are selected as internal standards to compensate for matrix suppression effect and sensitivitydrift. The method has been successfully applied to batch analysis of rock samples withsatisfactory results,the detection limits were 0.01～5μg/g,the RSDs(n=10)being 2.6%～13%.
出处
《岩矿测试》
CAS
CSCD
北大核心
1995年第3期173-179,共7页
Rock and Mineral Analysis
基金
地矿部八五项目8502205子课题(A9205)
关键词
质谱法
痕量元素
岩石
样品
determination of trace elements,rocks,sample preparation,inductively coupled plasma-mass spectrometry(ICP-MS)
