摘要
利用自行研制的有３个反射体的全反射Ｘ射线荧光分析仪，以Ｓｅ作内标，同时测定天然水中的痕量Ｎｉ、Ｃｕ、Ｚｎ、Ｐｂ、Ｒｂ和Ｓｒ。对纳克级元素，方法的检出限为１０－１０～１０－１１ｇ，水样分析结果与无火焰原子吸收法和ＩＣＰＭＳ法相符，精密度好，对纳克级痕量元素测定的ＲＳＤ（ｎ＝５）小于７２％。
A method for the determination of trace Ni, Cu, Zn, Pb, Rb and Sr in natural water samples was developed by home-made total reflection X-ray fluorescence spectrometer equipped with three reflectors. Se was used as an internal standard and detection limits for these elements are 10-10～10-11 g. The method has been applied to the determination of these trace elements in natrueal water samples. The results are in good agreement with those provided by GFAAS and ICPMS. The precision are better than 7.2% RSD( n =5).
出处
《岩矿测试》
CAS
CSCD
北大核心
1998年第2期123-126,共4页
Rock and Mineral Analysis
基金
地矿部八五重点地质科技项目
关键词
X射线
荧光光谱法
多元素
天然水
痕量元素
total reflection X-ray fluorescence spectrometric analysis, simultaneous determination of multielement, natural water
