[Analysis of heavy metal in soil with portable X-ray fluorescence spectrometry].
Guang Pu Xue Yu Guang Pu Fen Xi
; 32(3): 826-9, 2012 Mar.
Article
em Zh
| MEDLINE
| ID: mdl-22582662
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 x 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.
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MEDLINE
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Zh
Ano de publicação:
2012
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Article