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| 气相色谱-质谱法测定饮用水中消毒副产物卤代腈 |
| Detection of Halogenated Nitrile in Drinking Water by Gas Chromatography Mass Spectrometry |
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| DOI： |
| 中文关键词: 卤代腈 消毒副产物 气相色谱-质谱法 饮用水 |
| 英文关键词: Halogenated nitrile Disinfection by products Gas chromatograpy mass spectrometry Drinking water |
| 基金项目:苏州市饮用水安全与水性疾病监测公共服务平台2012年开放课题基金资助项目（SVT201106） |
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| 中文摘要: |
| 采用顶空加盐气相色谱-质谱法检测饮用水中的消毒副产物氯乙腈、二氯乙腈和三氯乙腈，并对样品前处理方法及GC/MS仪器条件进行优化，使得3种卤代腈在5.00 μg/L~80.0 μg/L范围内线性良好，方法检出限分别为2.52 μg/L、1.02 μg/L和1.57 μg/L。空白水样的加标回收率为75.9%~94.1%， RSD为3.6%~6.2%。 |
| 英文摘要: |
| A method was developed for the determination of chloroacetonitrile、dichloroacetonitrile、trichloroacetonitrile in drinking water by gas chromatograpy mass spectrometry. The conditions for sample pretreatment and GC MS were investigated and optimized. Salt was added to the samples before headspace .The detection was carried out by headspace GC/MS in scan monitoring, and m/z 75、48、74、82、108、110 was selected as the qualitative ions. Selected ion monitoring mode was quantitative method. The detection limits of headspace method were 2.52 μg/L、1.02 μg/L and 1.57 μg/L,respectively and the recoveries ranged from 75.9% to 94.1%, RSDs were in the range of 3.6%~6.2%. The accuracy，reliability and sensitivity of the method made it suitable for the determination of three halogenated nitrile in drinking water. |
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