简单而灵敏的方法,用于同步量化饮用水中受监管和不受监管的优先消毒副产品
Jiafu Li1,2,3, Zengli Zhang1, Md Tareq Aziz3
1Department of Occupational and Environmental Health, School of Public Health, MOE Key Laboratory of Geriatric Diseases and Immunology, Soochow University, Suzhou 215123, China.
Analytical chemistry
|July 6, 2023
概括
一种新的,简单和敏感的方法同时测量饮用水中的九类消毒副产品 (DBPs). 这项分析强调了不受管制的DBP,特别是化的显著细胞毒性影响,强调了对其监测的必要性.
科学领域:
- 环境化学环境化学
- 分析化学 分析化学
- 水的质量 水的质量
背景情况:
- 消毒副产品 (DBPs) 由于其度较高,在饮用水中引起了全球性的关注.
- 现有的DBP分析方法在敏感性,简单性或范围方面存在局限性.
研究的目的:
- 开发一种简单,灵敏,同时分析9类DBP的方法.
- 评估不同DBP类对自来水总体DBP度和细胞毒性的贡献.
主要方法:
- 对9个DBP类的同时分析,包括酸 (HAAs),酸 (IAAs) 和单/二乙 (mono-/di-HALs).
- 利用HAA/IAA的化衍生,取代更严格的方法,并对其他DBP进行直接分析.
- 将该方法应用于13个家庭自来水样本.
主要成果:
- 该方法表现出良好的回收率 (70-130%),低量化极限 (0.01-0.05μg/L) 和高精度 (<30% RSD).
- 不受管制的DBP占DBP总度的42%和计算的细胞毒性的97%.
- 化DBPs (Br-DBPs) 和性DBPs是DBP水平和细胞毒性的主要贡献者,而乙是关键的毒性驱动因素.
结论:
- 开发的方法提供了一个简单,灵敏和全面的工具,用于分析各种DBP.
- 对受监管和不受监管的DBP进行监测是非常重要的,因为它们对健康有重大影响,特别是细胞毒性.
- 这些发现强调了在饮用水安全评估中解决DBP等新出现的污染物的重要性.
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