中文摘要：

采用一种新发展中的激光烧蚀-快脉冲放电等离子体光谱技术首次检测土壤中Sn元素的浓度。与传统的激光诱导击穿光谱技术相比,采用激光烧蚀-快脉冲放电等离子体光谱技术所产生的Sn（284.0nm）元素辐射光谱强度有很大提高,并应用该技术获得了土壤中Sn元素的校准曲线,使土壤中Sn元素检测极限降低到0.16μg.g^-1。与各文献报道的激光诱导击穿光谱技术中Sn元素的检测极限8.2～54μg.g^-1相比有很大的改进,表明该技术可能在土壤元素快速定量检测中具有应用价值。

英文摘要：

A developing technique,laser ablation and fast pulse discharge plasma spectroscopy technique（LA-FPDPS）,was used for the first time to analyze the Sn concentration in soil.The peak intensity of Sn（284.0 nm） line from soil plasma emission was greatly enhanced in comparison with using the traditional single pulse（SP） LIBS system.Using the technique,calibration curve of Sn in soil was derived.The limit of detection（LOD） for Sn in soil was reduced to be 0.16 μg·g-1.The value is significantly improved compared with the results reported in literature when using LIBS technique,which usually was between 8.2 to 54 μg·g-1 depending on the experimental condition,indicating that this technique possibly will be useful for rapid quantitative elemental analysis in soil.