基于ICP-MS法的自来水中重金属元素含量检测方法

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关键词：电感耦合等离子体质谱（ICP-MS）；重金属；元素含量；自来水 中图分类号：TS251 文献标识码：A 文章编号：1008-9500（2025）06-0012-03 DOI： 10.3969/j.issn.1008-9500.2025.06.003

Detection Method of Heavy Metal Element Content in Tap Water Based onICP-MSMethod

LINKongliang，XUDongchao，JINXue，YANGYiyou，CHENYueyue，ZHOU Yongfang （WenzhouMunicipalWaterworksCo.，Ltd.（WenzhouMonitoringStationofNationalUrbanWaterSuplyQualityMonitoringNetwork）， Wenzhou 325000， China）

Abstract：Whendetectingthecontentofhavymetalelements intapwater，itissusceptibletointerferencefrommatrix substances，resultinginsignificanterors.Therefore，methodfordetecting heavymetalelementcontentintapwaterbased on Inductively Coupled Plasma-Mass Spectrometry （ICP-MS）is proposed.Byscientificallseting theparametersof mass spectrometry instruments，standard parameters for mass spectrometry processing applicable to tap water samples are derived，reducing the interferenceof matrix substances on heavy metal elementsignalsand improving thesensitivityand accuracyof detection.Calculate thecoefcientof variationofheavy metalions basedonICP-MS methodand evaluate the degreeofdatadispersion.Using methodssuchascorrelationcoeffcientandchisquare test，combinedwithcoeffcientof variation，todetectthecontentof heavymetal elements intap water.Theexperimentalresultsshowed thatusing ICP-MS method to detect heavy metal elements in tap water samples resulted in a concentration value withan error of ±0.005mg/L （20 compared to the true value， indicating high accuracy.

Keywords： Inductively Coupled Plasma-Mass Spectrometry （ICP-MS）; heavy metals;elementcontent; tapwater

随着工业化进程的加快，重金属污染问题日益突出，检测自来水中的重金属元素含量成为保障饮用水安全的重要环节[。（剩余2903字）