摘要
水中微量挥发性有机硫化物是我国饮用水中重要的嗅味物质组成部分,不仅嗅阈值很低,而且具有毒性。水中微量含硫类致嗅物质的分析测试技术是开展各项相关研究的基础,因而受到越来越多的关注。本文介绍了水中常见含硫类致嗅物质的嗅味特征、水中微量挥发性有机硫化物分析测试中遇到的主要困难及主要分析测试方法。气相色谱技术是测试该类物质的实用技术,本文从检测器的选择、色谱柱的选择和预富集方法三个方面详细介绍了采用气相色谱分析水中微量挥发性有机硫化物过程中遇到的主要问题和解决方法,并展望了水中微量挥发性有机硫化物分析测试技术的发展方向。
Volatile organic sulfur compounds, with low odor threshold concentration and deadly toxicity, are important odorants in drinking water in China. Analytical testing techniques for sulfur odorants in water, as the foundation of all the related research, catch great attention. This paper reviews the characteristics of common sulfur odorants, the main difficulties and solutions encountered in analyzing volatile organic sulfur compounds in water. A detailed discuss in selection of detector, chromatographic column, method of preconcentration in gas chromatographic determinations, which is the most practical technique in analysis of sulphur-containing compounds, and prospects of analytical testing techniques for volatile organic sulfur in water are presented in this paper.
出处
《化学进展》
SCIE
CAS
CSCD
北大核心
2009年第12期2718-2725,共8页
Progress in Chemistry
基金
国家自然科学基金项目(No.50778097)资助
关键词
致嗅物质
硫醇
硫醚
微量
odorants
mercaptan
thioether
micro amount
