发射光谱法测定区域化探样品中的Pb、Sn、Mo、V元素

DETERMINATION OF Pb,Sn,Mo AND V CONTENTS IN THE REGIONAL GEOCHEMICAL SAMPLES BY EMISSION SPECTROMETRY

采用发射光谱法测定区域化探样品中Pb、Sn、Mo、V元素,以焦硫酸钾、氟化钠、三氧化二铝和碳粉的混合物为固体缓冲剂,采用外加内标法以锗(Ge)作为内标元素,选择合适的分析线对,选取国家一级地球化学标准物质(GBW水系沉积物、土壤)平行测定(n=12次).测试结果准确度达到规范要求,满足区域化探样品的检测要求.

To determine the Pb,Sn,Mo and V contents in the regional geochemical samples by emission spectrometry,select a mixture of potassium pyrophosphate,sodium fluoride,aluminum oxide and carbon powder as solid buffer,Ge as the internal standard element,and also appropriate analysis line pairs and national first-level geochemical standard materials(GBW stream sediments and soil)for parallel determination(n=12).The test results show that the accuracy meets the specification and test requirements of regional geochemical samples.