Analysis of Heavy Metal in Soil with Portable X-Ray Fluorescence Spectrometry
HAN Ping, WANG Ji-hua*, LU An-xiang, MA Zhi-hong, PAN Li-gang
Beijing Research Center for Agrifood Testing and Farmland Monitoring, National Engineering Research Center for Information Technology in Agriculture, Beijing 100097, China
Abstract：The concentrations of main heavy metal pollutants (Cu, Zn, Pb, Cr and As) in soil were tested by NITON XL3 600 portable X-ray fluorescence spectrometry (PXRF). The results showed that the minimum?detection limits for elements Cu, Zn, Pb, Cr and As were 23.96, 11.69, 8.58, 19.23, 6.24 mg·kg-1, respectively. The soil composition standard material GSS-5 was detected by PXRF for 5 replicate measurements, The accuracy was 96%～102% and relative standard deviations (RSD) was 1.0%～7.6%. In term of field situ testing, RSD was less than 20%, and accuracy was 55%～119%. The performance was assessed by laboratory testing and field situ detection, and the results indicated that PXRF is effective for rapid, quantitative monitoring of soil metal contamination.
韩 平，王纪华*，陆安祥，马智宏，潘立刚 . 便携式X射线荧光光谱分析仪测定土壤中重金属[J]. 光谱学与光谱分析, 2012, 32(03): 826-829.
HAN Ping, WANG Ji-hua*, LU An-xiang, MA Zhi-hong, PAN Li-gang . Analysis of Heavy Metal in Soil with Portable X-Ray Fluorescence Spectrometry. SPECTROSCOPY AND SPECTRAL ANALYSIS, 2012, 32(03): 826-829.
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