DUNMi-na,SONGYan,WANGLan,et al.High-resolution Mass Spectrometry-based Screening and Analysis of Organic Matters in Shallow Reservoirs Located in Lower Reaches of the Yellow River[J].China Water & Wastewater,2025,41(19):80-87.
High-resolution Mass Spectrometry-based Screening and Analysis of Organic Matters in Shallow Reservoirs Located in Lower Reaches of the Yellow River
China Water & Wastewater[ISSN:1000-4062/CN:12-1073/TU]
volume:
第41卷
Number:
第19期
Page:
80-87
Column:
Date of publication:
2025-10-01
- Keywords:
- shallow reservoir; organic matter; high-resolution gas chromatography-mass spectrometry; non-targeted screening; lower reaches of the Yellow River
- Abstract:
- Solid?phase extraction was applied to concentrate organic matters from water samples collected at three shallow reservoirs to comprehensively investigate the pollution characteristics of organic matters in the water of shallow reservoirs located in the lower reaches of the Yellow River. Subsequently, high?resolution gas chromatography-mass spectrometry (GC-MS) was utilized for non?targeted screening of organic matters in the samples, followed by an analysis of potential pollution sources contributing to organic contamination in the reservoir waters. Meanwhile, the variations in water quality characteristics of the reservoir between the wet season and the dry season were systematically compared and analyzed. The diversity of organic matters observed during the dry season in the three reservoirs was higher than that recorded during the wet season. This variation may be attributed to factors such as water volume, temperature, and hydraulic retention time within the reservoirs. The number of organic matter types detected during the dry season was 202, 263, and 242, respectively, with relatively high detection rates of alkanes, esters, and organic acids. 35 types of organic matters were commonly detected in the water bodies of three reservoirs. Among them, dichlorobenzene, phenanthrene, and atrazine were identified with relatively high response intensities, suggesting that the water quality pollution in these reservoirs was closely associated with chemical and agricultural activities.
Last Update:
2025-10-01