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Journal AWWA - Alternative Methods for the Analysis of NDMA and Other Nitrosamines in Water AWWA期刊-水中NDMA和其他亚硝胺分析的替代方法
发布日期: 2006-12-01
据报道,饮用水和饮用水中含有N-亚硝二甲胺(NDMA)和其他亚硝胺 循环水的污染和消毒副产品的含量都很低。 其中许多亚硝胺会导致动物致癌,很可能是人类致癌 致癌物。在本研究中,对现有的三种分析方法进行了扩展、改进和改进 经验证可用于分析饮用水、废物和废水中的NDMA和其他七种亚硝胺 循环水。固相萃取(SPE)法的方法检测限和 研究了固相萃取(CSPE)与气相色谱-串联质谱联用技术 NDMA为0.7纳克/升,其他亚硝胺为0.3纳克/升。微液-液萃取法(MLLE)体积小,分析效果好 不同的样品基质产生了更高的检测限(2纳克/升)。 NDMA是唯一的 在饮用水中检测到亚硝胺;但是N-亚硝基二乙胺,N-亚硝基吗啉, N-硝基异丙啶、N-亚硝基二正丁胺和N-硝基异吡咯烷也存在于其他化合物中 矩阵测试。SPE方法和MLLE方法已提交纳入 在水和废水检测标准方法的下一次修订中,以及 CSPE方法将在未来提交审批。包括17个参考文献、表格、图表。
N-nitrosodimethylamine (NDMA) and other nitrosamines have been reported in drinking and recycled water at low parts-per-trillion levels, both as contaminants and disinfection byproducts. Many of these nitrosamines cause cancer in animals and are probable human carcinogens. In this study, three existing analytical methods were expanded, refined, and validated for the analysis of NDMA and seven other nitrosamines in potable, waste, and recycled water. Method detection limits for a solid-phase extraction (SPE) method and a cartridge SPE (CSPE) coupled with gas chromatography-tandem mass spectrometry were 0.7¿¿¿¿¿¿¿¿0.8 ng/L for NDMA and 0.3¿¿¿¿¿¿¿¿1.4 ng/L for other nitrosamines. The micro-liquid-liquid extraction (MLLE) method that was developed used less volume and was effective at analyzing the different sample matrixes but yielded higher detection limits (2¿¿¿¿¿¿¿¿4 ng/L). NDMA was the only nitrosamine detected in potable water; however N-nitrosodiethylamine, N-nitrosomorpholine, N-nitrosopiperidine, N-nitrosodi-n-butylamine, and N-nitrosopyrrolidine were present in other matrices tested. The SPE methods and the MLLE method have been submitted for inclusion in the next revision of Standard Methods for the Examination of Water and Wastewater, and the CSPE method will be submitted for approval in the future. Includes 17 references, tables, figures.
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发布单位或类别: 美国-美国给水工程协会
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