【摘要】 <正> 能量色散X射线荧光光谱法是一门新的应用技术。其优点是全自动化;分析快速,定性定量准确;并可同时进行多元素的分析。 应用能量色散X射线荧光分析,我们采用粉末压片厚样法对东海海洋沉积物中Rb、Sr元素进行了模拟测试,确定其基体的组成与地质矿产部研制的水系沉积物标准样GDs_1-8基更多还原

【Abstract】 In this paper, Energy-dispersive X-ray fluorescence Spectrometry and thick compressed powder sample slice were used for an analogous test to measure trace element Rb and Sr in oceanic sediment in the East China Sea. The matrix of the sample has been determined and the standard sample for analysing elements Rb and Sr has been prepared. The results of measurement are as follows: The measuring limits of concentration of elements Rb and Sr are 0.005% and 0.002% respectively. The relative error for each element is less than 10% and the relative deviation is less than 1.9%. This method provides some bases for resolving the distribution of elements Rb. Sr in oceanic sediment in continental shelf of the China Sea更多还原