生态与农村环境学报2025，Vol.41Issue(11)：1441-1449,9.DOI:10.19741/j.issn.1673-4831.2025.0543
便携式气质联用技术在地下水异色物质分析和溯源中的应用
Application of Portable Gas Chromatography-mass Spectrometry Technology in the Analysis and Source Tracing of Heterochromatic Substances in Groundwater
摘要
Abstract
The analysis of discolored substances in groundwater remains a challenging issue in the field of environmental monitoring.Traditional analytical methods have limitations such as poor timeliness and complex operation.This study es-tablished an on-site analysis method for discolored substances in groundwater based on solid-phase microextraction com-bined with portable gas chromatography-mass spectrometry(SPME-PGC-MS).Based on a typical scenario of discolor pol-lution spreading to rivers from a surrounding enterprise,qualitative screening and quantitative determination of key sub-stances were performed on groundwater samples simultaneously.Through qualitative screening,it was determined that the main discolored substances in groundwater are aniline derivatives,including aniline,N,N-dimethylaniline,N-ethylani-line,N-ethylo-toluidine and N,N-diethylaniline.Further relying on qualitative screening results,the main source of river pollution was confirmed.Meanwhile,the method showed good quantitative linearity for aniline compounds(R2＞0.98),with recovery rates ranging from 93.81％to 107.77％,relative standard deviations of 6.23％to 10.31％,and the detec-tion limits of 0.44 to 0.63 μg·L-1.Through quantitative analysis,the diffusion range of pollutants can be accurately identi-fied,and N-ethylaniline can be determined as a characteristic marker of local area discolor pollution.The SPME-PGC-MS technology developed in this study provides a new approach for rapid investigation and monitoring of groundwater pollution.It can effectively overcome the limitations of traditional technology,such as poor timeliness and high cost,and provide impor-tant data support for the formulation of subsequent groundwater risk control measures for the site.It is expected to become a core technical means for emergency response,early warning,and long-term monitoring of groundwater pollution.关键词
地下水污染/异色物质/便携式气质联用/固相微萃取/污染溯源Key words
groundwater pollution/discolored substance/portable gas chromatography-mass spectrometry/solid-phase microextraction/pollution source tracing分类
资源环境引用本文复制引用
倪章,宫楼楼,葛明明,李晓旭,龙涛,黄剑波,盛峰,石佳奇..便携式气质联用技术在地下水异色物质分析和溯源中的应用[J].生态与农村环境学报,2025,41(11):1441-1449,9.基金项目
国家重点研发计划项目(2023YFC3706005) （2023YFC3706005）
大型科研仪器开放共享研究课题(ZX2024QT097) （ZX2024QT097）
