氢载气GC-MS测定乙烯中磷化氢、砷化氢  

Determination of phosphine and arsine in ethylene by GC-MS using hydrogen as carrier gas

作　　者：陈松[1] 管振喜 王浩 王小伟 姜健准[1] CHEN Song;GUAN Zhenxi;WANG Hao;WANG Xiaowei;JIANG Jianzhun(Sinopec Beijing Research Institute of Chemical Industry,Beijing 100013,China;Agilent Technologies Inc.,Beijing 100102,China;Beijing GASTK Analytical Technology Co.,Ltd.,Beijing 100012,China)

机构地区：[1]中国石化北京化工研究院,北京100013 [2]安捷伦科技(中国)有限公司,北京100102 [3]北京集思泰科分析技术有限公司,北京100012

出　　处：《石油化工》2023年第1期104-108,共5页Petrochemical Technology

基　　金：中国石油化工股份有限公司资助项目(CHG21009)。

摘　　要：以氢气为载气,采用渗透管定量系统,建立了乙烯原料中微量磷化氢、砷化氢的GC-MS分析方法,考察了方法的精密度、准确性和最低检出限,并采用所建立的方法对实际试样进行分析。实验结果表明,当磷化氢、砷化氢含量在0.006~1.211mL/m3时,外标校正曲线相关系数大于0.999,加标回收率在95.1%~106.0%之间,相对标准偏差小于4.0%,最低检出限为0.006~0.007 mL/m3。所建立的方法可满足乙烯原料中微量磷化氢、砷化氢的监测和分析需求。The GC-MS method for determination of trace amount of phosphine and arsine in ethylene was established using hydrogen as carrier gas with permeation tube system.The precision,accuracy and the detection limit of the method were investigated.The actual samples were analyzed by the established method.The results show that when the concent of phosphine and arsine in ethylene is0.006-1.211 mL/m~3,the correlation coefficient of external standard correction curve is greater than0.999,the recovery is 95.1%-106.0%,the relative standard deviation is less than 4.0%,and the detection limit is 0.006-0.007 mL/m~3.The method can meet the requirment for monitor and analysis of trace phosphine and arsenic in ethylene.

关 键 词：氢气 乙烯 GC-MS 磷化氢 砷化氢 

分 类 号：TQ221.21[化学工程—有机化工]