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Validation of the Tessier scheme for speciation of metals in soil using the Bland and Altman test
Frentiu, Tiberiu, Ponta, Michaela, Levei, Erika, Gheorghiu, Emilia, Kasler, Iosif and Cordos, Emil A. Validation of the Tessier scheme for speciation of metals in soil using the Bland and Altman test Chemical Papers, Vol.62, No. 1, 2008, 114-122
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Document type:
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Článok z časopisu / Journal Article |
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Collection:
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Chemical papers
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| Author(s) |
Frentiu, Tiberiu
Ponta, Michaela
Levei, Erika
Gheorghiu, Emilia
Kasler, Iosif
Cordos, Emil A.
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| Title |
Validation of the Tessier scheme for speciation of metals in soil using the Bland and Altman test
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| Journal name |
Chemical Papers
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| Publication date |
2008
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| Year available |
2008
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| Volume number |
62
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| Issue number |
1
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| ISSN |
0366-6352
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| Start page |
114
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| End page |
122
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| Place of publication |
Poland
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| Publisher |
Versita
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| Collection year |
2008
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| Language |
english
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| Subject |
250000 Chemical Sciences
250400 Analytical Chemistry
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| Abstract/Summary |
The Tessier extraction method was used for speciation of Cu, Pb, Zn, As, Fe and Mn in a large concentration range in contaminated soil with various mineralogical compositions. The results were compared by X-ray fluorescence spectrometry (XRF) as a reference method using the Bland and Altman test. A sum of five fractions (exchangeable, bound to carbonates, Fe-Mn oxides, organic matter and residual forms) was compared with the total content determined on solid matrix by the reference method. A good agreement between the methods in the whole concentration range was found for Cu, Zn, As, and Fe. For Mn and Pb, XRF was found suitable to verify the sequential extraction only for concentrations above 250 mg kg−1. This was a consequence of a poorer reproducibility of Pb extraction using the Tessier scheme due to a great difference in the mineralogical composition and the diversity of the Pb species identified in soil. The poorer result of Mn was attributed to the spectral interference of Fe in XRF.
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