河湖沉积物中汞的便携XRF快速测定研究

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文章编号：1674-6139（2026）04-0110-05

中图分类号：X832文献标志码：B

Rapid Determination of Mercury in River-Lake Sediments Using Portable XRF

Liu Bing1，²，JinXiulan³，Tong Qijie1，²，ZhangYinglei 1，2 ，Fan Guangyu 1，2 （1.Beijing Capital Eco-Environment Protection Group Co.，Ltd.，Beijing 10Oo37，China; 2.Beijing Capital Air Environmental Science& Technology Co.，Ltd.，Beijing 10044，China； 3.Yanbian Ecological Environment Monitoring Station，Yanbian 1330oo，China）

Abstract：Arapidon-sitedetectionmethodbasedonportableenergydispersiveX-rayfluorescencespectroscopy（ED-XRF）was establishedfortheemergencyanalysisoftracemercuryinwatersediment.Samplesweretreatedbyhomogenzationcombinedwithvacuum filtrationanddetectedusingahigh-performanceportableEDXRFdevice.Theoptimizedcondtionsweredeterminedas5Oecondsof homogenizatio5OcodsofacuufirationndOscondsofstrumenteectioResultssoedtatthmethodde tion limit of 0.15mg/kg and alower limit of determination of 0.495mg/kg .Therelative standard deviation of seven parallel experiments ranged from 3.89% to 13.20% ，and the spiked recovery rate of on-site sediments was 84.0% to 106.0% .Compared with atomic fluorescencespectrometry，thisetodpefodwellinerabilityimeliess，ensitivityndcuracy，mtingtedsfapdo sitedetection.Iisstableformergencymoitoingofmercurypllutioninoss-asinandlargamplesdiments，providingtec nical support for environmental accident disposal.

Keywords：heavy metal；sediment;mercury；water environment；XRF

前言

汞是高神经毒性重金属，可通过大气沉降、水体流动等在生态系统传播并生物富集，危害水生生物、土壤微生物及人类健康，且形态多、迁移转化复杂，增加治理难度[1]。（剩余5476字）