摘要
采用固相微萃取与气相色谱—质谱联用测定饮用水中5种常见的土霉味物质,研究了萃取温度、盐含量、萃取时间和溶液pH值等操作条件对分析方法的影响。得到的优化分析条件如下:萃取温度为65℃、盐含量为25%、萃取时间为1 h;该方法的相对标准偏差<10%,样品的加标回收率≥89%。
A sensitive method of solid phase microextraction （SPME） followed by gas chromatography/mass spectrometry （GC/MS） was used for analyzing five kinds of common earthy-musty odorants. The effects of extraction temperature, salt content, extraction time, pH and other operation conditions on the analysis method were investigated. The resulting optimal conditions are 65 ~C for the extraction temperature, 25% for salt concentration and 1 h for extraction time. The relative standard deviations of the method are below 10%. The recovery rate of standard addition in the sample is over 89%.
出处
《中国给水排水》
CAS
CSCD
北大核心
2007年第10期76-78,共3页
China Water & Wastewater
基金
国家自然科学基金资助项目(20577060)
国家高技术研究发展计划(863)项目(2002AA601120)
关键词
饮用水
土霉味物质
固相微萃取
气相色谱-质谱联用
drinking water
earthy-musty odorants
solid phase microextraction
gas chromatography/mass spectrometry
