通过里埃变换离子环子共振质谱学阐明的化消毒副产品的分子特性
在PubMed上查看摘要
概括
此摘要是机器生成的。这项研究揭示了真实水样中的消毒副产品 (Xn-DBPs) 与实验室制造的苏安尼河自然有机物 (SRNOM) 溶液中的副产品有显著差异,影响了形成潜力的评估.
科学领域
- 环境化学
- 水质分析
- 有机地化学
背景情况
- 在水消毒过程中,从溶解的有机物中形成化消毒副产品 (Xn-DBPs).
- 使用苏瓦尼河自然有机物 (SRNOM) 进行Xn-DBP研究可能不准确地反映现实情况.
- 了解自然水中的Xn-DBP形成对于公共健康至关重要.
研究的目的
- 为了比较SRNOM和真实天然水样中的Xn-DBPs及其前体的分子组成.
- 在标准和真实环境矩阵之间识别Xn-DBP形成潜力的差异.
- 为了更准确地评估Xn-DBP的化学多样性.
主要方法
- 使用超高分辨率质谱的非目标分析.
- 化SRNOM溶液和真实水样的比较
- 碰撞诱导的解离MS-MS用于Xn-DBPs的结构阐明.
主要成果
- 与SRNOM相比,真实样本显示出更多的和和还原性Xn-DBP前体.
- 在两种样本类型中,类化合物是主要的前体和副产品.
- 与SRNOM不同的是,在真实样本中存在富含氧气,缺乏的化合物.
- 确定了三种代表性的Xn-DBPs的结构,包括化pyrazolol,酸和阿齐林衍生物.
结论
- 标准的SRNOM并不完全代表Xn-DBP研究中的自然有机物.
- 在实验室标准和自然水之间存在Xn-DBP和前体分子组成的显著差异.
- 这项研究提供了对现实水处理场景中Xn-DBP形成的更细致的理解.
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