若干陨石微量元素的仪器中子活化分析

中子活化分析特别是仪器中子活化分析具有灵敏度高、使用样品量少、可同时测定多种元素、容易避免样品污染等优点,因而广泛地应用于地学和空间化学的研究中,本工作采用热中子仪器活化分析对安龙、东台、阳江、吉兰太、吉林、清镇等六个石陨石的微量元素进行了测定。分析中采用相对比较法,以美国地质调查所标准岩石样品G-1作为直接多元素标准,为了检验分析方法的准确性,还用G-1标准岩石对部分单元素液体标准做了对比验证分析,结果表明在误差范围内符合得较好,证明本方法是可靠的。

DETERMINATIONS OF TRACE ELEMENTS IN SOME STONY METEORITES BY INSTRUMENTAL NEUTRON ACTIVATION ANALYTICAL METHOD

12 trace elements in six pieces of stony meteorites of Anlong,Dongtai,Yangjiang,Jilantai,Jilin,Qingzhen have been determined with Instrumental Neutron Activation Comparing method in which USGS's standard rock G-l is used as direct multielement standard.These stony meteorites is ground into powder and devided into two parts of magnet and nonmagnet.Some of the monoelement liquid standard and the standard rock G-l have simultaneously been tested with the comparing check analysis method of which the results are coincidence each other,so as to check the accuracy of the method discussed.