Occurrence of nine nitrosamines and secondary amines in source water and   drinking water: Potential of secondary amines as nitrosamine precursors

doi:10.1016/j.watres.2011.06.041

CORC > 北京大学 > 环境科学与工程学院

	Occurrence of nine nitrosamines and secondary amines in source water and drinking water: Potential of secondary amines as nitrosamine precursors
	Wang, Wanfeng ; Ren, Shuoyi ; Zhang, Haifeng ; Yu, Jianwei ; An, Wei ; Hu, Jianying ; Yang, Min
刊名	水研究
	2011
关键词	Nitrosamines Secondary amines Disinfection by-products Chlorination Chloramination UPLC-MS/MS N-NITROSODIMETHYLAMINE NDMA CHROMATOGRAPHY-MASS-SPECTROMETRY GAS-CHROMATOGRAPHY WASTE-WATER ALIPHATIC-AMINES CHLORINATION SAMPLES QUANTIFICATION MONOCHLORAMINE DIMETHYLAMINE
DOI	10.1016/j.watres.2011.06.041
英文摘要	Due to their high carcinogenicity, the control of nitrosamines, a group of disinfection by-products (DBPs), is an important issue for drinking water supplies. In this study, a method using ultra-performance liquid chromatography-electrospray ionization tandem mass spectrometry was improved for simultaneously analyzing nine nitrosamines in source water and finished water samples of twelve drinking water treatment plants (DWTPs) in China. The method detection limits of the nine target analytes were 0.2-0.9 ng/L for the source water samples and 0.1-0.7 ng/L for the finished water samples. Of the nine nitrosamines, six (N-nitrosodimethylamine (NDMA), nitrosodiethylamine (NDEA), N-nitrosomorpholine (NMor), N-nitrosodi-n-butylamine (NDBA), N-nitrosomethylethylamine (NMEA), and N-nitrosodiphenylamine (NDPhA)) were detected. The total nitrosamine concentrations in source water and finished water samples were no detection-42.4 ng/L and no detection-26.3 ng/L, respectively, and NDMA (no detection-13.9 ng/L and no detection-20.5 ng/L, respectively) and NDEA (no detection-16.3 ng/L and no detection-14.0 ng/L, respectively) were the most abundant. Meanwhile, the occurrence of nine secondary amines corresponding to the nine nitrosamines was also investigated. All of them except for di-n-propylamine were detected in some source water and finished water samples, and dimethylamine (no detection-3.9 mu g/L and no detection-4.0 mu g/L, respectively) and diethylamine (no detection-2.4 mu g/L and no detection-1.8 mu g/L, respectively) were the most abundant ones. Controlled experiments involving chloramination of four secondary amines confirmed that dimethylamine, diethylamine, morpholine and di-n-butylamine in water can form the corresponding nitrosamines, with diethylamine and morpholine showing significantly higher yields than dimethylamine which has already been identified as a precursor of NDMA. This study proved that diethylamine, morpholine and di-n-butylamine detected in raw water would be one of the important the precursors of NDEA, NMOR and NDBA, respectively, in drinking water. (C) 2011 Elsevier Ltd. All rights reserved.; Engineering, Environmental; Environmental Sciences; Water Resources; SCI(E); EI; 22; ARTICLE; 16; 4930-4938; 45
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/237629]
专题	环境科学与工程学院
推荐引用方式 GB/T 7714	Wang, Wanfeng,Ren, Shuoyi,Zhang, Haifeng,et al. Occurrence of nine nitrosamines and secondary amines in source water and drinking water: Potential of secondary amines as nitrosamine precursors[J]. 水研究,2011.
APA	Wang, Wanfeng.,Ren, Shuoyi.,Zhang, Haifeng.,Yu, Jianwei.,An, Wei.,...&Yang, Min.(2011).Occurrence of nine nitrosamines and secondary amines in source water and drinking water: Potential of secondary amines as nitrosamine precursors.水研究.
MLA	Wang, Wanfeng,et al."Occurrence of nine nitrosamines and secondary amines in source water and drinking water: Potential of secondary amines as nitrosamine precursors".水研究 (2011).