自1974年以来的消毒副产品数据库和审查:构成元素,分子量和结构
Hechao Chen1, Jidao Xie2, Chengxiang Huang3
1Key Laboratory of Optoelectronic Chemical Materials and Devices of Ministry of Education, School of Optoelectronic Materials & Technology, Jianghan University, Wuhan 430056, China.
Journal of hazardous materials
|October 19, 2023
概括
一个新的数据库编制了6 310个饮用水消毒副产品 (DBPs) 从1974-2022. 大多数DBP含有素,酸是常见的功能组,突出需要进一步识别和表征.
科学领域:
- 环境化学环境化学
- 分析水质 分析水质
- 分析化学 分析化学
背景情况:
- 自1974年以来,人们一直在研究饮用水中的消毒副产品 (DBPs).
- 截至2011年,已知有600多个DBP,但不断报告新的DBP.
- 质谱学的进步需要DBP及其属性的综合数据库.
研究的目的:
- 构建并提供公众对DBP综合数据库的访问权限.
- 分析DBP的起源,元素组成,分子量,功能组和碳框架.
- 为了证明数据库对DBP选和预测建模的实用性.
主要方法:
- 汇编了1974年至2022年间报告的6310个DBP (确认,确定,提议) 的汇编.
- 对DBP属性的比较分析,包括元素组成,分子量和功能组.
- 使用高分辨率质谱,修改的范克列伦图和素调整的索引对拟议的DBP进行表征.
主要成果:
- 只有不到7.0%的DBP被标准验证或经常在实际水中检测到,这表明许多仍然未被识别.
- 大约88%的DBPs含有素,在真水中含有类似比例的化和化DBPs.
- 酸是主要的功能群;亚利法和芳香化合物是主要的碳框架;大多数DBP在200-400Da之间.
- 拟议的DBP通常表现出素和素结构,其中醇/高度不和化合物占主导地位.
结论:
- 开发的数据库是DBP研究,选和建模的关键工具.
- 大多数已识别的DBP都是基的,其中酸和特定的碳框架是常见的.
- 需要进一步的研究来识别和描述大量的拟议的DBP,特别是那些具有素/素来源的DBP.
相关概念视频
01:27Chemical Agents for Microbial Control
38
Chemicals play important roles in controlling microbial growth by targeting microbial structures and functions as sanitizers, antiseptics, disinfectants, and sterilants.Alcohols are commonly used sanitizers, effectively disrupting lipid membranes, which compromises cell integrity. They are also used as antiseptics and disinfectants due to their rapid action and versatility.Phenols and their derivatives phenolics , known for denaturing proteins and disrupting cell membranes, are particularly...
38
01:30Cleaning, Sterilization, and Disinfection
6.9K
Cleaning, disinfection, and sterilization are the methods that help to break the infection chain and prevent disease.
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
Cleaning
The cleaning process usually involves using water with detergents or enzymatic cleaner and removing foreign material from objects and surfaces, including organic material such as body fluids or inorganic material like soil. Cleaning is performed before high-level disinfection and sterilization because foreign materials on the cover of the devices interfere with process...
6.9K
00:46Bioremediation
18.7K
Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
18.7K