化学
亚硝胺
氯胺
金属
臭氧
N-亚硝二甲胺
色谱法
氯
基质(化学分析)
气相色谱法
复矩阵
环境化学
致癌物
有机化学
作者
Abdulrazaq Yahaya,Damilola Elizabeth Babatunde,Lamidi W. B. Olaniyan,Oluranti Agboola
出处
期刊:Heliyon
[Elsevier]
日期:2020-03-01
卷期号:6 (3): e03447-e03447
被引量:9
标识
DOI:10.1016/j.heliyon.2020.e03447
摘要
The use of ozone, chloramine and chlorine dioxide for water treatment results in the formation N-nitrosamines in the treated water. These groups of chemicals and other nitrogen-containing compounds have been described as disinfection by-products (DBPs) which are known for their toxicity. Nitrosamines are a potential source of nitric oxide (NO) which can bind with metals present in the sample matrix leading to formation of metal – nitrosyl complexes and dissolved metals have the potential to increase the total nitrosamines in water. This phenomenon has not received the desired attention and determination of metal-nitrosyl complexes lack standard analytical technique. Chromatography linked to various detectors is the commonest of the techniques for nitrosamine analysis but it is beset with reduced sensitivity as a result of inappropriate choice of the column. Incidentally, chromatographic techniques have not been really adapted for the analysis of metal-nitrosyl complexes. Therefore, there is need for the survey of existing techniques vis-à-vis metal-nitrosamine analysis and to suggest possible areas for method optimization.
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