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基于GC-HRMS的化学指纹信息使用污染源的分析策略:垃圾填埋场液的案例研究

Qian Zhang¹, Ninghui Song², Hang Xu³

¹College of Environment, Ministry of Education Key Laboratory of Integrated Regulation and Resource Development on Shallow Lakes, Hohai University, Nanjing 210098, PR China.; Nanjing Institute of Environmental Sciences, Ministry of Ecology and Environment, Nanjing 210042, PR China.; Suzhou Research Institute, Hohai University, Suzhou 215100, PR China.

|January 1, 2025

概括

这项研究引入了一种使用气体染色学高分辨率质谱法 (GC-HRMS) 分析垃圾填埋污水等污染源的化学信息的新方法. 结果显示,不同类型的废物具有不同的化学特征,有助于环境污染管理.

科学领域:

环境化学环境化学
分析化学分析化学
质谱测量质量谱测量

背景情况:

新兴污染物 (ECs) 带来越来越多的环境风险.
了解污染源对于有效的EC管理至关重要.
垃圾填埋场的液是环境污染的重要来源.

研究的目的:

开发和展示一种用于分析来自污染源的化学信息的新策略.
使用GC-HRMS. 用于垃圾填埋场漂水中的有机化合物的特征.
根据废物成分识别不同的污染标志.

主要方法:

使用高分辨率质谱法 (HRMS) 进行非目标查.
在14个垃圾填埋污水样本中对5344种有机化合物的表征.
类似性和差异性分析,以确定特征性标记污染物和危险化学品 (HCs).

主要成果:

在垃圾填埋场的液中,共发现了5344种有机化合物.
在三个含有不同废物成分的液组中,确定了169种特征标记污染物.
选了101种危险化学品 (HCs),揭示了不同类型垃圾填埋场的不同污染标志.

结论:

开发的GC-HRMS战略有效地分析来自污染源的化学信息.
不同的固体废弃物组成导致垃圾填埋场水中独特的污染标志.
这种方法为ECs的环境污染管理和控制提供了有价值的参考.

关键词:

有关化学指纹的化学指纹新出现的污染物新出现的污染物在 GC-QTOF-MS 中.垃圾填埋场的洗液是如何处理的非有针对性的查.

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