电感耦合等离子体质谱法测定砂金中稀土元素  

Determination of rare earth element in gold placer by ICP-MS

作　　者：李予晋[1] 周燕[1] 王铁夫[1] 张延洁[1] 

机构地区：[1]吉林大学地球科学学院

出　　处：《黄金》2013年第1期73-75,共3页Gold

基　　金：国土资源部公益性行业科研专项(200911043-09)

摘　　要：建立了砂金中15种稀土元素的电感耦合等离子体质谱测定方法。考察了基体Au的谱线干扰及基体效应,采用In内标补偿基体对待测信号的抑制作用。仪器检测限为0.000 9～0.002 9μg/L,加入标准物质的回收率为98%～106.7%,分析结果的相对标准偏差(RSD)为0.33%～1.79%。该方法简单、快速、灵敏、准确。A determination method of 15 rare earth elements in gold placer by inductively coupled plasma mass spectrometry was established.The effects of spectral interference and matrix effect of the substrate Au were investigated and the inhibition matrix did to the measured signal was compensated using In as internal standard.The detection limit is 0.000 9-0.002 9 μg/L,the recovery was 98 %-106.7 % by standard substance addition and the relative standard deviation（RSD）of the analysis is 0.33 % to 1.79 %.The method is simple,quick,sensitive and accurate.

关 键 词：电感耦合等离子体质谱法 砂金 稀土元素 内标法 

分 类 号：TD926.3[矿业工程—选矿]