岩矿测试2016，Vol.35Issue(4)：373-377,5.DOI:10.15898/j.cnki.11-2131/td.2016.04.006
氧化镁烧结－电感耦合等离子体质谱法测定砂岩型铀矿中的痕量铼
Determination of Trace Rhenium in Sandstone-type Uranium Deposits by Inductively Coupled Plasma-Mass Spectrometry with Magnesium Oxide Sintering
摘要
Abstract
The average content of uranium in sandstone-type uranium deposits is 635 μg/g,whereas the content of rhenium is 0.3-1 .9 μg/g.Because of low rhenium content,now precise determination of low Re in high U ores remains unresolved.In this study,a method for the determination of trace Re in sandstone-type uranium deposits by Inductively Coupled Plasma-Mass Spectrometry was developed.Samples were digested by MgO sintering,and were then extracted by hot water.103 Rh was used as the internal standard element to eliminate the interferences of uranium,molybdenum and other matrix elements on Re.Under optimum conditions,the detection limit of trace rhenium is 0.12 ng/g,and the recovery is 99.8%.The method was validated by a variety of standard samples,the measured Re contents are in good agreement with the standard values.The relative standard deviation (RSD)is less than 1.5% for Re contents of 0.06 -180.57 μg/g,which meets the requirement of determining trace Re in high U ores from sandstone type uranium deposits.关键词
砂岩型铀矿/铼/烧结法/电感耦合等离子体质谱法Key words
sandstone-type uranium deposit/rhenium/sintering method/Inductively Coupled Plasma-Mass Spectrometry分类
天文与地球科学引用本文复制引用
王妍力,罗明标,柯麟,徐志良,方小伟..氧化镁烧结－电感耦合等离子体质谱法测定砂岩型铀矿中的痕量铼[J].岩矿测试,2016,35(4):373-377,5.基金项目
国家自然科学基金资助项目(21361001),东华理工大学省部共建核资源与环境国家重点实验室培育基地自主科研基金资助项目(Z201402) （21361001）
