赛默飞液相色谱备件快速到货承诺——液相色谱常规模块.pdf

SimultaneousDeterminationofAg， WandMoinGeochemical Exploration Samples by ICP-MS Using P507Loaded Foam for Separation XING Zhi1，QI Liang2* 1． Sichuan Rock and Mineral Analytical Center of Geological Exploration and Resources Development， Pengshan 620860，China; 2． State Key Laboratory of Ore Deposit Geochemistry，Institute of Geochemistry，Chinese Academy of Sciences， Guiyang 550002，China AbstractWhen determining Ag in geochemical exploration samples by Inductively Coupled Plasma- Mass Spectrometry ICP- MS ，the molecular ions 91Zr16O and93Nb16O can seriously interfere with the isotopes107Ag and 109Ag and need to be separated out to obtain accurate results． The application of P 507levextrel resin to separate the interfering elements of Zr and Nb was recently successfully conducted to in the determination of Ag in exploration samples． In this study，this was improved by using P507loaded foam to absorb the interference elements with vibration and in measuring Ag， W and Mo by ICP- MS． The sample was digested by HF， HNO3， HClO4and reverse aqua regia in an open system． The results of reference materials agree well with the certified values． The detection limits of Ag，W and Mo are 0． 0045 μg/g，0． 023 μg/g，0． 060 μg/g，respectively，which are lower than the detection limits of multi- target geochemical exploration 1 ∶ 250000 ． The proposed is more simple and rapid than the of P507levextrel resin and can be used for routine determination of Ag，W，Mo and trace elements in large amounts of geochemical exploration samples． Key words geochemical exploration samples; Ag; W; Mo; P507loaded foam; Inductively Coupled Plasma- Mass  Spectrometry 赛默飞液相色谱备件快速到货承诺 液相色谱常规模块 2014 年 5 月 11 日， 科学服务领域的世界领导者赛默飞世尔科技 以下简称 赛默飞 发布液相色谱备件 快速到货承诺 液相色谱常规模块， 两周内到货， 实现了历史性突破。实验做到一半， 氘灯无法工作， 此刻 的你该怎么办 相信大多数用户都遇到类似的问题。进口仪器需要更换或更新部件和耗材， 到货期常常需要很长一段 时间， 在此等待期间， 用户别无办法， 项目进度也因此耽搁。 为了更好地满足用户的应急需求和全国广大用户日益增长的市场需要， 赛默飞世尔科技推出了液相色 谱产品快速到货承诺 － － 液相色谱常规模块， 包括常用配件和耗材的到货期缩短至两周内。 两周到货期长期有效， 详情请请点击 http / /www． thermo． com． cn/news1097． html。 赛默飞世尔科技公司 094 第 4 期 岩矿测试 http ∥www． ykcs． ac． cn 2014 年 ChaoXing