| 气相色谱-质谱法检测饮用水新生含氮消毒副产物氯代乙酰胺 |
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| 引用本文： | 楚文海,高乃云.气相色谱-质谱法检测饮用水新生含氮消毒副产物氯代乙酰胺[J].分析化学,2009,37(1). |
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| 作者姓名： | 楚文海 高乃云 |
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| 作者单位： | 同济大学污染控制与资源化研究国家重点实验室,上海,200092 |
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| 基金项目： | 国家科技支撑计划，上海市科委重点科技项目，国家高技术研究发展计划(863计划) |
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| 摘 要： | 建立了气相色谱-质谱(GC-MS)法检测饮用水中新生致突变含氮消毒副产物(N-DBPs)二乙酰胺(DCAcAm)和三乙酰胺(TCAcAm)的分析方法.考察了GC/MS和GC/ECD两种检测仪器及不同样品前处理技术对氯代乙酰胺(CAcAms)的检测效果.对比发现,酸催化水解+GC/ECD的分析方法容易受其它消毒副产物(DBPs)的影响,直接液液萃取(LLE)+GC/MS更适合CAcAms的分析;乙酸乙酯(ETAC)的萃取效果优于DBPs分析常用萃取剂甲基叔丁基醚(MTBE).在选定条件下,DAcAm和TAcAm在10～1000 μg/L的范围内线性关系良好,r＞0.9995; 方法回收率在82.0%～111.9%之间;RSD小于10%;检出限(MDL)和测定限(RQL)均低于1 μg/L.
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| 关 键 词： | 气相色谱-质谱 饮用水 含氮消毒副产物 氯乙酰胺 酸催化水解 |
Determination of Nitrogenous Disinfection Byproducts Chloroacetamides in Drinking Water by Gas Chromatography-Mass Spectrometry |
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| CHU Wen-Hai,GAO Nai-Yun.Determination of Nitrogenous Disinfection Byproducts Chloroacetamides in Drinking Water by Gas Chromatography-Mass Spectrometry[J].Chinese Journal of Analytical Chemistry,2009,37(1). |
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| Authors: | CHU Wen-Hai GAO Nai-Yun |
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| Institution: | State Key Laboratory of Pollution Control and Resources Reuse;Tongji University;Shanghai 200092 |
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| Abstract: | A new method for the determination of nitrogenous disinfection byproducts chloroacetamides(CAcAms) in drinking water by gas chromatography mass spectrometry(GC-MS) is described.In the method,the effects of different detecting instrument(GC/ECD and GC/MS) and sample pretreatment were investigated.Direct liquid-liquid extraction-GC/MS method was superior to acid-catalyzed hydrolysis + GC/ECD according to recovery comparison,and extraction effect of ethyl acetate(ETAC) excels methyl tert-butyl ether(MTBE).Good... |
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| Keywords: | Gas chromatography-mass spectrometry drinking water nitrogenous disinfection byproducts chloroacetamides acid-catalyzed hydrolysis |
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