气相色谱法测定污染空气中恶臭硫化物
GC Determination of Stenchy Sulfides in Polluted Air
摘 要
应用固相微萃取(SPME)预处理技术,采用脉冲火焰光度检测器(PFPD)-气相色谱法(GC)测定污染空气中硫化氢、二硫化碳、甲硫醇、1,2-乙二硫醇、甲硫醚、羰基硫6种恶臭硫化物.同时探讨了SPME及色谱的最佳条件.所得各物质的校正曲线相关系数在0.998 0~0.999 4之间,检出限在1.9~4.1 pg之间,加标回收率在89%~102%之间,测定结果的RSD值在1.3%~3.1%之间,所建立方法应用于实际样品分析,获得满意结果.
固相微萃取
脉冲火焰光度检测器
恶臭硫化物
Gas chromatography
Solid phase micro-extraction
Pulse flame photometric detection
Stenchy sulfides
Abstract
Gas chromatography with sample-pretreatment by solid-phase micro-extraction (SPME) and with pulse flame photometric detection was applied to the determination of 6 stenchy sulfides (hydrogen sulfide,carbon disulfide,methanethiol,1,2-ethanedithiol,dimethylthioether and carbonyl sulfide) in polluted air. Conditions of SPME and gas chromatography were studied and optimized. Correlation coefficients of the linear regression equations of these compounds were found in the range of 0.998 0 to 0.999 4,their detection limits in the range of 1.9-4.1 pg and their recoveries in the range 89%-102%. The proposed method has been applied to the analysis of 3 air sample,giving values of RSD in range from 1.3% to 3.1%.
中图分类号 O657.63
所属栏目 工作简报
基金项目 绵阳师范学院资助项目(MA2004015)
收稿日期 2007/1/9
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备注李松(1970-),男,四川筠连人,硕士,讲师,主要从事分析化学教学与研究.
引用该论文: LI Song,YIN Hui,LI Guo-lan,HE Ji-chuan,HU Chang-wei. GC Determination of Stenchy Sulfides in Polluted Air[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2007, 43(7): 582～584
李松,尹辉,黎国兰,何冀川,胡常伟. 气相色谱法测定污染空气中恶臭硫化物[J]. 理化检验－化学分册, 2007, 43(7): 582～584
被引情况:
【1】魏宇锋,费旭东,赵 波,吴 颖,张继东,邱 丰, "气相色谱-硫化学发光检测器法测定车用汽油中6种硫醚",理化检验－化学分册 51, 1537-1540(2015)
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参考文献
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【2】张月琴,杨海鹰,吴淑琪.大气中痕量硫化物的富集及其检测进展[J].现代科学仪器,2005(6):16-20．
【3】Wardencki W. Problems with the determination of environmental sulfur compounds by gas chromatography[J]. Journal of Chromatography A,1998,793:1-19．
【4】Lestremau F,Desauziers V,Roux J,et al. Development of a quantification method for the analysis of malodorous sulphur compounds in gaseous industrial effluents by solid-phase microextraction and gas chromatography-pulsed flame photometric detection[J]. Journal of Chromatography A,2003,999:71-80．
【5】Inomata Y,Matsunaga K,Murai Y,et al. Simultaneous measurement of volatile sulfur compounds using ascorbic acid for oxidant removal and gas chromatography-flame photometric detection[J]. Journal of Chromatography A,1999,864:111-119．
【6】GB/T 14678-1993空气质量 硫化氢、甲硫醇、甲硫醚和1,2-乙二硫醇的测定 气相色谱法[S]．
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