固相微萃取-气相色谱-三重四级杆质谱检测饮用水水源中6种环状缩醛类致嗅物质
Determination of cyclic aldehyde compounds in drinking water by solid phase micro extraction-gas chromatography-triple quadrupole mass spectrometry
伍银爱 1肖裕泽1
作者信息
- 1. 广东省环境科学研究院,广州 510045
- 折叠
摘要
目的 建立饮用水水源环状缩醛致嗅物质的检测方法,以践行高质量发展,为提升公共服务品质提供技术支撑.方法 本研究针对饮用水水源中环状缩醛致嗅物质的检测,建立固相微萃取-气相色谱-三重四级杆质谱定量方法.结果 固相微萃取法测试饮用水水源中 6 种环状缩醛类物质的最优条件为孵化温度为 50℃,转速为 500 r/min,孵化时间为 15 min,样品孵化后萃取纤维萃取时间为 20 min.定量方法的检出限为 2.87～4.67 ng/L,相对标准偏差为6%～16%,加标回收率范围为 70.7%～115%.采集某水源水样品作为该方法的应用对象,确认该水样中主要致嗅的环状缩醛物质为 2-EDD,其检出浓度为 32 ng/L.结论 应用结果表明该方法能准确、快速地定量饮用水水源中主要致嗅的环状缩醛类物质,具有准确性、可靠性和适用性.
Abstract
Objective To establish a method for the detection of cyclic aldehyde compounds in drinking water sources,in order to practice high quality development and improve the technical support of public service quality.Methods Quantitative detection method of cyclic aldehyde compounds in drinking water by using SPME-GC-MS/MS were established.Results The results show that the optimal conditions for SPME aimed at cyclic aldehyde compounds in drinking water are an incubation temperature of 50℃,a rotational speed of 500 r/min,an incubation duration of 15 min,followed by a sample extraction time of 20 min.The detection limits of this quantitative detection method were 2.87～4.67 ng/L,the relative standard deviation were 6%～16%,the recoveries were 70.7%～115%.A specific water sample was collected to ascertain that the key odor-causing compound was 2-EDD,exhibiting concentrations 32 ng/L.Conclusion This method can accurately and swiftly identify key odor-causing compounds in drinking water.
关键词
固相微萃取-气相色谱-三重四级杆质谱法/饮用水水源/环状缩醛类致嗅物质Key words
SPME-gas chromatography-triple quadrupole mass spectrometry/drinking water source/cyclic aldehyde compounds引用本文复制引用
出版年
2024
NETL
NSTL
万方数据