固相萃取-气相色谱法在典型地表水苯系物检测中的应用

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关键词：固相萃取；气相色谱；苯系物；地表水

中图分类号：X832 文献标识码：A 文章编号：1008-9500（2026）03-0017-04

DOI：10.3969/j.issn.1008-9500.2026.03.005

Application of Solid Phase Extraction-Gas Chromatography in the Determination of Benzene Series Compounds in Typical Surface Water

MENGRong

（Jiangsu GreenMountainsandClearWatersInspectionandTestingTechnologyCo.，Ltd.，Lianyungang2220oo，China）

Abstract：Asolid phase extraction-gaschromatography method was established andoptimizedforthedeterminationof benzeneseriescompounds（benzene，toluen，ethylbenzene，m/p-xylene，ando-xylene）insurface water，andthepollution characteristicsof typical waterbodiesintheYangtzeRiver Basin weresystematicallyanalyzed.Themethod exhibitedgood linearity in the range of 0.5μg/L to 100.0μg/L ，with correlation coefficients greater than 0.999 O.The limits of detection were 0.03μg/L to 0.08μg/L ，and the limits of quantification were 0.10μg/L to 0.26μg/L .The spiked recoveries ranged from 85.6% to 104.3% ，with relative standard deviations less than 8% ，meeting the requirements for the determination of tracebenzeneseriescompoundsinsurfacewater.One-yearmonitoringattentypicalsamplingsitesindicatedthat，spatially， concentrations inthedenselypopulated urbanareasofthemiddlereaches were higherthan those intheupperand lower reaches，with a maximum total mass concentration of 8.96 μg/L .Temporally，significant seasonal variation was observed， with the highest mass concentrations in winter （average of 5.86μg/L ）andthe lowestin summer （average of 2.15μg/L ） Among different waterbody types，urban river sections showed the highest polutionlevels，followedby estuarine and lacustrine waters，whileriverine waters exhibitedthelowestlevels.Theseresultsprovideascientificbasisfortheprevention and control of benzene series compound pollution and for surface water quality management.

Keywords： solid phase extraction; gas chromatography; benzene series compounds;surface water

苯系物作为重要的有机污染物，因其潜在致癌性和环境持久性而备受关注[1-2]。（剩余3586字）