2023.02ELECTRONICSQUALITY波长色散XRF对土壤元素测定的检定过程研究黎刚,李洁,杨永健,李红华(中国科学院生态环境研究中心大型分析仪器室,北京100085)摘要:X射线荧光光谱技术在土壤修复、环境暴露风险对人类健康危害评估等方面的研究中发挥着重要的作用。为了保证分析结果的准确可靠,仪器设备的性能指标是关键。以PerformX4200型波长色散X射线荧光光谱仪为实例,依据测定土壤和沉积物中的无机元素的波长色散X射线荧光光谱法,详细地介绍了波长色散X射线荧光光谱仪的检定方法,并对该仪器的性能测试和计量检定流程进行了阐述;同时利用土壤标准曲线测试,评估了仪器的性能,为该类仪器的检定和日常维护使用,以及计量标准的考核提供了参考。关键词:X射线荧光光谱仪;仪器性能;土壤;检定中国分类号:O657.34文献标识码:A文章编号:1003-0107(2023)02-0073-05doi:10.3969/j.issn.1003-0107.2023.02.016ResearchontheCalibrationProcessofSoilElementDeterminationbyWavelengthDispersiveXRFLIGang,LIJie,YANGYongjian,LIHonghua(ResearchCenterforEco-EnvironmentalSciences,ChineseAcademyofSciences,Beijing100085,China)Abstract:X-rayfluorescencespectroscopyplaysanimportantroleintheresearchofsoilremediationandtheas-sessmentofenvironmentalexposureriskstohumanhealthhazards.Inordertoensuretheaccuracyandreliabilityoftheanalysisresults,theequipmentperformanceindexisthekeyfactor.TakingthePerformX4200wavelengthdisper-siveX-rayfluorescencespectrometerasamodel,accordingtothewavelengthdispersionX-rayfluorescencespec-troscopytodeterminetheinorganicelementsinthesoilandsediment,theverificationmethodofthewavelengthdis-persiveX-rayfluorescencespectrometerisintroducedindetail,andtheperformancetestandmetrologicalverificationprocessoftheinstrumentisdescribed.Atthesametime,theperformanceoftheinstrumentisevaluatedbyusingthesoilstandardcurvetest,whichprovidesareferencefortheverificationanddailymaintenanceofthiskindofinstru-ments,aswellastheassessmentofmeasurementstandards.Keywords:XRF;instrumentperformance;soil;calibration收稿日期:2022-10-11修回日期:2022-11-22作者简介:黎刚(1984—),男,湖南岳阳人,中国科学院生态环境研究中心大型分析...