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
王娟 1高绪安 1林庆文1
作者信息
- 1. 安徽省地质实验研究所,安徽合肥 230001
- 折叠
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.
Abstract
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Key words
portable X-ray fluorescence spectrometer/agricultural soil/heavy metals/on site determination/laboratory analysis引用本文复制引用
出版年
2024
NETL
NSTL
万方数据