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Application of sequential extraction with supercritical CO2, subcritical H2O, and an H2O/CO2 mixture for estimation of environmentally mobile heavy metal fractions in sediments

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Abstract.

Results from use of a new isolation procedure based on sequential extraction with supercritical CO2, subcritical H2O, and an H2O/CO2 mixture in the same supercritical fluid extractor have been compared with results from the BCR-recommended three-step sequential extraction procedure. The new procedure gives more detailed information about environmentally mobile fractions (water-soluble, bicarbonate-forming), and in less time (5–6 h), than the BCR procedure.

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Authors and Affiliations

  1. Department of Chemistry and Biochemistry, Szent István University, Gödöllö, Páter K. u. 1. 2103, Hungary

    G. Heltai, B. Fehér, K. Percsich, B. Barabás & I. Fekete

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  1. G. Heltai
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  2. B. Fehér
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  3. K. Percsich
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  4. B. Barabás
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  5. I. Fekete
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Heltai, G., Fehér, B., Percsich, K. et al. Application of sequential extraction with supercritical CO2, subcritical H2O, and an H2O/CO2 mixture for estimation of environmentally mobile heavy metal fractions in sediments. Anal Bioanal Chem 373, 863–866 (2002). https://doi.org/10.1007/s00216-002-1388-6

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  • DOI: https://doi.org/10.1007/s00216-002-1388-6

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