中文摘要：

采用高纯HNO_3为氧化剂代替传统的氧化剂,以GeO_2为玻璃化试剂,建立了一种简单、高效的硫化物熔融玻璃片的前处理方法。XRF和LA-ICPMS分析结果表明,相对于粉末压片法,熔片法制备的样品具有更好的均一性和可靠性。3种硫化物国家一级标准物质的XRF和LA-ICPMS主次量元素（Si,Al,Fe,Mg,K,Ca,Na,Mn,Cu,Zn）分析测试结果均与推荐值相吻合（Ti缺少推荐值）,测定误差都在允许范围内,XRF三次熔片测试结果的精密度RSD〈5.6%;LA-ICPMS 15次测试结果精密度RSD〈3%。表明建立的硫化物熔融玻璃片的前处理方法可较好的应用于XRF和LA-ICPMS分析硫化物中的主次量元素。

英文摘要：

A new sample fusion method for sulfides has been developed in this study.HNO3 was used as a short pre-oxidation reagent instead of the traditional solid oxidant（e.g.,NaNO3,KNO3）,which avoid the erosion of the platinum crucible.GeO2 was also added in samples to avoid the break of glass beads.The good analytical precisions of X-ray fluorescence spectrometry（RSD5.6%,1σ）and laser ablation inductivity coupled plasma mass spectrometry（RSD3%,1σ）demonstrated that the major elements were homogeneously distributed in the fused beads of sulfides.The determined major and minor elements（Si,Al,Fe,Mg,K,Ca,Na,Mn,Cu and Zn）values by using XRF and LA-ICP-MS are in excellent agreement with published values inthree reference sulfide standards（reference values for Ti were absent）.These results clearly demonstrate that the present fusion technique is well suitable for routine sulfide sample preparation for both XRF and LA-ICP-MS analysis.