SCD/FPD检测器-气相色谱法测定天然气中的硫化合物  

Determination of Sulfur Compounds in Natural Gas by SCD/FPD-gas Chromatography

作　　者：刘荣[1,2] 林杨杰 郝星杰 王美娜 陈思 毛佳伟[1,2] 张占元 李铭[1,2] LIU Rong;LIN Yangjie;HAO Xingjie;WANG Meina;CHEN Si;MAO Jiawei;ZHANG Zhanyuan;LI Ming(Sichuan Institute of Product Quality Supervision and Inspection,Chengdu 610100,Sichuan,China;Chengdu Institute of Product Quality Inspection and Research Co.,Ltd.,Chengdu 610100,Sichuan,China)

机构地区：[1]四川省产品质量监督检验检测院,四川成都610100 [2]成都产品质量检验研究院有限责任公司,四川成都610100

出　　处：《四川化工》2024年第4期34-37,共4页Sichuan Chemical Industry

基　　金：四川省市场监督管理局科技计划项目(SCSJS2023011)。

摘　　要：利用硫化学发光检测器(SCD)和火焰光度检测器(FPD)两种不同检测器的气相色谱法对天然气中的硫化合物含量进行分析,并进行定性分析和分离度评价、检出限测定、精密度和准确性检测。实验结果表明,两种方法对硫化合物的分离度良好,测定结果的相对标准偏差最大为1.12%,GC-FPD检测回收率为100.2%~100.8%,GC-SCD检测回收率为99.6%~100.6%,表明两种方法所测结果的重复性和准确度良好,再现性满足国标要求。Gas chromatography was used to analyze the content of sulfur compounds in natural gas using two different detectors,sulfur chemiluminescence detector(SCD)and flame photometric detector(FPD).Qualitative analysis,separation evaluation,detection limit determination,precision and accuracy testing were conducted.The experimental results show that these two methods have good separation of sulfur compounds,with a maximum relative standard deviation of 1.12%.The recovery rates of GC-FPD detection are 100.2%~100.8%,and GC-SCD detection are 99.6%~100.6%.This indicates that the repeatability and accuracy of the results obtained by these two methods are good,and the reproducibility meets the requirements of national standards.

关 键 词：天然气 含硫化合物 FPD SCD 气相色谱 测定 

分 类 号：O657.71[理学—分析化学] TE648[理学—化学]