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| 液-液萃取与气相色谱-质谱联用测定环境样品中的单质硫 | |
| 引用本文： | 刘卫国,梁存珍,於俊杰,韩超南.液-液萃取与气相色谱-质谱联用测定环境样品中的单质硫[J].光谱实验室,2012,29(3):1403-1406. |
| 作者姓名： | 刘卫国 梁存珍 於俊杰 韩超南 |
| 作者单位： | 1. 武汉理工大学资源与环境工程学院 武汉市洪山区珞狮路122号 430070;北京石油化工学院环境工程系 北京市大兴区黄村镇清源北路19号 102617 2. 北京石油化工学院环境工程系 北京市大兴区黄村镇清源北路19号 102617 3. 环境保护部环境与经济政策研究中心 北京市西城区西直门南小街115号 100029 |
| 基金项目： | 北京科技新星计划资助项目，环保部公益性行业科研专项，环境治理与调控技术北京市优秀教学团队资助项目 |
| 摘 要： | 采用液-液萃取与气相色谱-质谱联用测定复杂环境基质样品中的单质硫,研究萃取溶剂、色谱柱类型及炉温升温程序对分析方法的影响。实验结果表明:二硫化碳作为萃取溶剂好于四氯化碳。采用HP-1MS柱时,炉温在270℃恒温保持10min进行分析,单质硫峰形较好。采用HP-5MS柱,单质硫峰形及丰度均优于HP-1M S柱。该分析方法的线性范围为5—200mg/L,可决系数R2为0.9980,最低定量限0.106mg/L,测定5个5mg/L硫水混合液平行样的相对标准偏差为3.179%。生物脱硫反应器出水中单质硫测定结果表明,该检测方法是可行的。 |
| 关 键 词： | 单质硫 液液萃取 气相色谱-质谱法 生物脱硫反应器 |
Determination of Elemental Sulfur in Environmental Samples by Liquid-Liquid Extraction Coupled with GC-MS |
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| LIU Wei-Guo , LIANG Cun-Zhen , YU Jun-Jie , HAN Chao-Nan.Determination of Elemental Sulfur in Environmental Samples by Liquid-Liquid Extraction Coupled with GC-MS[J].Chinese Journal of Spectroscopy Laboratory,2012,29(3):1403-1406. | |
| Authors: | LIU Wei-Guo LIANG Cun-Zhen YU Jun-Jie HAN Chao-Nan |
| Affiliation: | b a(College of Resources and Environmental Engineering,Wuhan University of Science and Technology,Wuhan 430070,P.R.China)b(Department of Environmental Engineering,Beijing Institute of Petrochemical Technology,Beijing 102617,P.R.China)c(Policy Research Center for Environment and Economy,Minstry of Environmental Protection,Beijing 100029,P.R.China) |
| Abstract: | A sensitive method was developed for the determination of elemental sulfur in complex environmental matrixes via the liquid-liquid extraction method followed by gas chromatography-mass spectrometry(GC-MS).Effects of extraction solvents,chromatography column and heating oven temperature programme on the determination were investigated.The results showed that:as a solvent for the elemental sulfur extraction,CS2 was better than CCl4.For HP-1MS column,there was a better peak shape of elemental sulfur at the oven temperature of 270 ℃ constant for 10 min,while both the peak shape and the sensitivity from HP-5MS column were better than that from HP-1MS column.The linear range for elemental sulfur was 5—200mg/L with the coefficient of determination R2 of 0.9980,and the minimum limit of quantitation was 0.106mg/L.The relative standard deviation for the determination of five replicates of 5mg/L elemental sulfur in water was 3.179%.The method has been applied to determining elemental sulfur in biological desulfurization reactor effluent with good results. |
| Keywords: | Elemental Sulfur Liquid-Liquid Extraction GC-MS Biological Desulfurization Reactor |
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