通过使用Orbitrap质谱仪进行非目标选分析,通过有机物分成和相关性分析来表征消毒副产品前体

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Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Single-throughput Complementary High-resolution Analytical Techniques for Characterizing Complex Natural Organic Matter Mixtures

Published on: January 7, 2019

Ittikorn Palee¹, Futoshi Kurisu², Phanwatt Phungsai³

¹Department of Environmental Engineering, Faculty of Engineering, Khon Kaen University, Khon Kaen 40002, Thailand.

|September 11, 2025

概括

这项研究引入了一种新方法,通过使用聚合物吸附剂部分去除溶解有机物 (DOM) 来识别水中的消毒副产品 (DBP) 前体. 这种方法有效地表征了DBP前体,有助于水安全研究.

科学领域:

环境化学环境化学
水处理技术水处理技术
分析化学分析化学

背景情况:

消毒副产品 (DBPs) 在从溶解有机物 (DOM) 前体的水化过程中形成.
DBPs及其前体的复杂分子性质仍未得到充分研究.
了解DBP形成对于确保饮用水安全至关重要.

研究的目的:

开发和验证一种用于研究消毒副产品前体的新方法.
描述水中的DBP前体的分子性质.
在DBP前体分析中评估聚合物吸附剂处理的有效性.

主要方法:

使用不同剂量的 styrene-divinyl benzene 聚合物 (PPL) sorbent 部分去除 DOM.
非目标选分析,观察DOM特征的变化.
相关性分析以根据它们与DBP特征的关联来识别DBP前体.
确定前体的分子性质 (分子量,不和,氧化) 的表征.

主要成果:

增加PPL剂量有效地降低了DOM强度,改变了前体特征.
超过一半的观察到的CHO和CHON特征与化副产品 (CHOCl,CHONCl) 强烈相关,将其确定为前体.
与平均DOM相比,已识别的DBP前体呈现出较高的分子量,较高的不和和较低的氧化状态.
PPL吸附剂优先去除具有这些前体特性的分子.

结论:

用PPL吸附剂和相关性分析去除部分DOM的综合方法对于调查DBP前体是有效的.
该研究成功地描述了DBP前体的关键分子特征,包括三甲的特征.
这种方法为饮用水中DBP形成的复杂化学过程提供了宝贵的见解.

关键词:

用消毒的消毒方法相关性分析是一项相关性分析.分子特征分子特征轨道飞行器质谱学质谱学在PPL吸附剂中使用吸附剂.不知名的消毒副产品

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