电感耦合等离子体质谱分析通古斯大爆炸地区沉积物中超痕量铂族元素  

Determination of Ultra-trace PGEs in the Sediments Near the Tunguska Explosion Site by ICP-MS

作　　者：谢烈文[1] 侯泉林[1] 阎欣[1] 王秀丽[1] Kolesnikov E M 

机构地区：[1]中国科学院地质与地球物理研究所岩石圈构造演化开放实验室,北京100029 [2]莫斯科大学地质系,莫斯科119899

出　　处：《岩矿测试》2001年第2期88-90,共3页Rock and Mineral Analysis

基　　金：国家自然科学基金! (4 96 0 2 0 38) ;中国科学院岩石圈演化开放实验室课题 !(980 5 ;9913)

摘　　要：建立了一个用酸 (HF、HCl、HNO3、HClO4)溶解通古斯地区沉积物样品 ,以Re为内标元素 ,用电感耦合等离子体质谱 (ICP -MS)测定其中铂族元素的分析方法。方法检出限为0 .0 0 1～ 0 .0 6μg/L ,回收率大于 85%。用该方法分析了 9个取自通古斯地区的沉积物样品 ,发现了Ru、Rh、Pd、Ir。A method for determination of ultra trace platinum group elements (PGEs) in the sediments near the Tunguska explosion site by inductively coupled plasma mass spectrometry (ICP MS) was developed. Samples were decomposed with mixed acids (hydrofluoric acid, aqua regia, nitric acid and perchloric acid). The detection limits for PGEs are 0.001～0.06?μg/L.The recoveries of standard additions are better than 85%. Nine sediment samples taken from Tunguska explosion site were determined by this method. And the anomalies of Ru, Rh, Pd, Ir and Pt were found.

关 键 词：铂族元素 电感耦合等离子体质谱法 通古斯大爆炸 沉积物 检出限 回收率 

分 类 号：P595[天文地球—地球化学] O657.53[天文地球—地质学]