生态与农村环境学报2025，Vol.41Issue(11)：1450-1460,11.DOI:10.19741/j.issn.1673-4831.2025.0728
便携式X射线荧光光谱仪对土壤中重金属快速测定可行性及关键影响因素研究
Research on the Feasibility and Key Influencing Factors of Rapid Determination of Heavy Metals in Soil by Porta-ble X-ray Fluorescence Spectrometer
摘要
Abstract
This study used 4 different brands of portable X-ray fluorescence spectrometers(p-XRF)to determine 26 ele-ments in 18 actual soil samples from 10 regions in China and 6 standard soil samples.By comparing with the laboratory ICP-MS method,the elements that could be accurately quantified were screened out,and the effects of soil particle size and moisture content on the determination results were analyzed.The results show that p-XRF could accurately quantify 15 elements(Sb,As,Ba,Cd,Cr,Cu,Pb,Ni,Sn,Zn,Mn,Rb,Sr,Th,Ti)with relative errors less than 20％and pre-cision H values not exceeding 2.The method detection limit ranged from 0.03 to 40.0 mg·kg-1.When the optimal soil particle size was 100 mesh and the moisture content was below 10％the determination accuracy was higher.Compared with the laboratory method,p-XRF showed a good linear relationship(with the coefficient of determination ranging from 0.877 9 to 0.996 3)in the determination of 7 major heavy metals(Cr,Ni,Cu,Zn,As,Pb,Cd).p-XRF could be used as an effective auxiliary tool for rapid detection of heavy metals in soil,and the optimized test conditions could provide a reference for its application in environmental management.关键词
便携式X射线荧光光谱仪/重金属/快速测定/影响因素/土壤Key words
portable X-ray fluorescence spectrometer/heavy metal/rapid determination/influencing factor/soil分类
资源环境引用本文复制引用
郭洋,龙涛,应蓉蓉,刘仁彬,宋震,冯艳红..便携式X射线荧光光谱仪对土壤中重金属快速测定可行性及关键影响因素研究[J].生态与农村环境学报,2025,41(11):1450-1460,11.基金项目
国家自然科学基金项目(42302300) （42302300）
