便携式XRF在农业土壤重金属现场测定中的应用及与实验室分析的比较  

Application of Portable XRF in On-site Determination of Heavy Metals in Agricultural Soil and Comparison with Laboratory Analysis

作　　者：王娟 高绪安 林庆文[1] WANG Juan;GAO Xu-an;LIN Qing-wen(Anhui Research Institute of Geological Experiment,Hefei 230001,China)

机构地区：[1]安徽省地质实验研究所,安徽合肥230001

出　　处：《安徽化工》2024年第4期131-134,共4页Anhui Chemical Industry

摘　　要：研究了便携式X射线荧光光谱仪(p-XRF)在现场测定农业土壤中As、Cu、Cr、Ni、Pb重金属含量的应用,评估了p-XRF的精度、准确度和系统误差,并与常规实验室分析方法进行了比较。实验结果表明,便携式XRF能够快速、准确地测定农业土壤中的多种重金属元素,具有实时、无损、非破坏性和高效等优点。与传统的实验室分析方法相比,便携式XRF的分析结果具有较好的准确性和可靠性,且操作简便、省时省力,能够为农业生产提供及时的重金属污染信息。在土壤样本中,p-XRF测量的As、Cr、Cu、Pb和Ni浓度与实验室分析测量值之间的决定系数均达到0.8,表现出良好的线性关系。实验结果说明便携式XRF在农业土壤重金属现场测定中具有重要的应用价值,为便携式XRF在农业领域的应用提供了有益的参考。This paper studied the application of portable X-ray fluorescence spectrometer(p-XRF)in the field determi‐nation of heavy metal contents of As,Cu,Cr,Ni and Pb in agricultural soil,evaluated the accuracy,accuracy and sys‐tematic error of p-XRF,and compared it with conventional laboratory analysis methods.The experimental results show that portable XRF can quickly and accurately determine a variety of heavy metal elements in agricultural soil,and has the advantages of real-time,nondestructive,non-destructive and high efficiency.Compared with the traditional laborato‐ry analysis method,the portable XRF analysis results have better accuracy and reliability,and the operation is simple,time-saving and labor-saving,which can provide timely heavy metal pollution information for agricultural production.In soil samples,the determination coefficients between the concentrations of As,Cr,Cu,Pb and Ni measured by p-XRF and those measured by laboratory analysis reached 0.8,showing a good linear relationship.The experimental results show that the portable XRF has important application value in the field determination of heavy metals in agricultural soil,and provide a useful reference for the application of portable XRF in the field of agriculture.

关 键 词：便携式X射线荧光光谱仪 农业土壤 重金属 现场测定 实验室分析 

分 类 号：X53[环境科学与工程—环境工程]