电感耦合等离子体质谱仪在线稀释进样系统设计及其便捷测定氢甲酰化反应液中钴和磷元素  

Design of Online Dilution Organic Sampling System for Inductively Coupled Plasma Mass Spectrometer and Its Convenient Determination of Cobalt and Phosphorus in Hydroformylation Solutions

作　　者：曾波 刘祺壬 王国峰 郧栋 许传芝[1] 李臻[1] 夏春谷[1] ZENG Bo;LIU Qiren;WANG Guofeng;YUN Dong;XU Chuanzhi;LI Zhen;XIA Chungu(Lanzhou Institute of Chemical Physics,Chinese Academy of Sciences,Lanzhou 730000,China)

机构地区：[1]中国科学院兰州化学物理研究所,甘肃兰州730000

出　　处：《分析测试技术与仪器》2024年第4期209-214,共6页Analysis and Testing Technology and Instruments

基　　金：中国科学院仪器设备功能开发技术创新项目(No.2024g107)。

摘　　要：为了快速测定氢甲酰化反应有机相中钴和磷元素的浓度,对电感耦合等离子体质谱仪(ICP-MS)进样系统进行改造,实现直接对有机相进行分析.使用反应溶剂对待测物料进行在线自动稀释,然后直接进样测试元素的含量.样品的稀释倍数由进样泵参数进行校准,测试结果与手动稀释的误差低于3%.改进后的ICP-MS可以及时监测氢甲酰化反应过程中钴和磷浓度,发现实际生产过程中产能不足的问题,进一步指导促进增产的具体应对方案.In order to determine the concentration of cobalt and phosphorus in the organic phase of hydroformylation reaction,the sampling system of inductively coupled plasma mass spectrometer(ICP-MS)has been modified to allow direct analysis of the organic phase.The solvent was diluted online and the element contents were conveniently determined by direct injection of sample.The online dilution ratios were modulated by parameters calibration of the sampling pumps.The results error between the online and manual dilution was less than 3%.Based on the above improvements,ICP-MS can timely monitor the concentration of cobalt and phosphorus in the hydroformylation reaction process,thus identify the problem of insufficient production capacity and guide the specific response plan to increase productivity in the industrial hydroformylation.

关 键 词：电感耦合等离子体质谱仪 氢甲酰化反应 在线稀释 便捷测试 有机相进样 

分 类 号：O657.63[理学—分析化学] TH843[理学—化学]