基于全二维气相色谱法定量分析煤焦油中的噻吩类含硫化合物  

Quantitative analysis of thiophene-series sulfur-containing compounds in coal tar based on full two-dimensional gas chromatography

作　　者：冀志刚 孔娇 王美君 闫伦靖 常丽萍 鲍卫仁 JI Zhi-gang;KONG Jiao;WANG Mei-jun;YAN Lun-jing;CHANG Li-ping;BAO Wei-ren(State Key Laboratory of Clean and Efficient Coal Utilization,College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China;Key Laboratory of Coal Science and Technology of Ministry of Education,College of Chemical Engineering and Technology,Taiyuan University of Technology,Taiyuan 030024,China)

机构地区：[1]太原理工大学化学工程与技术学院,省部共建煤基能源清洁高效利用国家重点实验室,山西太原030024 [2]太原理工大学化学工程与技术学院,煤科学与技术教育部重点实验室,山西太原030024

出　　处：《现代化工》2024年第10期226-231,236,共7页Modern Chemical Industry

基　　金：国家自然科学基金项目(U1910201,22278295,22378291)。

摘　　要：建立了一种全二维气相色谱-氢火焰检测器(GC×GC-FID)定量分析煤焦油中8种典型噻吩类含硫化合物的方法。采用外标法定量分析,8种含硫化合物标准曲线的线性相关系数R为0.9990~0.9999,检出限为0.19~0.26 mg/L,加标回收率在100.0%~115.0%之间,相对标准偏差为0.72%~5.5%(n=6)。该方法操作简单,重复性好,适用于煤焦油中噻吩类含硫化合物的定量分析,可为其资源化利用提供理论基础。A method is established for the quantitative analysis of eight typical thiophene-series sulfur compounds in coal tar by full two-dimensional gas chromatography with hydrogen flame detector(GC×GC-FID),which is in fact an external standard method.The linear correlation coefficients of the standard curves for the eight sulfur-containing compounds range from 0.9990 to 0.9999.The detection limits are between 0.19 mg·L^(-1)and 0.26 mg·L^(-1).The spiked recovery rates are between 100.0%and 115.0%,and the relative standard deviations(RSD)range from 0.72%to 5.5%(n=6).The method is simple,reproducible,and suitable for the quantitative analysis of thiophene-series sulfur-containing compounds in coal tar,providing a theoretical basis for re-utilization of coal tar.

关 键 词：全二维气相色谱法 煤焦油 有机硫化物 定量分析 分离度 

分 类 号：TQ533.6[化学工程—煤化学工程]