燃烧氧化-非分散红外吸收法测定水中总有机碳的方法验证研究

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文章编号：1674-6139（2025）05-0112-05

中图分类号：X832文献标志码：B

Validation of DeterminingTotal Organic Carbon in Water with Combustion Oxidation-non -dispersive Infrared Absorption Method

DuGuiyue，ZhangShijia，Ha Ying，Huang Jianjun （Tianjin University，School of Environmental Science and Engineering，Tianjin 3Oo35O，China）

Abstract：AccordingtoTechnicalGuidelineforDevelopmentofEnvironmentalMonitoringAnalyticalMethod Standard（HJ168- 2020），thisstudyadoptedthemethodsdescribedinWaterTotalOrganicCarbonDeterinationwithCombustionOxidationodispesie InfraredAbsotionetod（HO）totesttetectiolit，lowerliitprecisionndcoeessoftalogaiccarbonn water.Theresults showed thatthe correlation coefficient of the standard curvewas O.998，the detection！ imit=0.06mg/L ，the lower limit of determination =0.24mg/L ，therelative standard deviation =0 41%～2.4% ，the relative error was 0.46%～1.8% ，and the rate of recovery wasl 04% ，all of which met therequirements of standard methodsand therelated regulations of method verification. Therefore，thelaboratoryhastheabilitytodeterminethetotaloganiccarboncontentinwaterbycombustionoxidationonspersive infrared absorption method.

Key words：combustionoxidation-non-dispersive infrared absorption；total organiccarbon；methodvalidation

前言

总有机碳是指以碳的数量来表征水中所含有机物的总量，是可吹扫有机碳和不可扫有机碳的总量。（剩余4167字）