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  • Improvement of analytical measurements within the BCR-programme : Single and sequential extraction procedures applied to soil and sediment analysis

Abstract

The determination of extractable trace metal contents in soil and sediment, using respectively single and sequential extraction procedures, is currently performed in many laboratories to assess the bioavailable metal fraction (and related phyto-toxic effects) and the accessibility to the environment (for example contamination of ground waters). Owing to the need for validation of the extraction schemes used and of the analytical techniques, the Community Bureau of Reference (BCR) decided to organise a project for the improvement of the quality of determinations of extractable trace metal contents in soil and sediment. The implementation of this project follows a stepwise approach involving feasibility studies, intercomparison to detect and remove sources of errors in the application of the analytical methods, and the certification of the extractable compounds. This paper describes the organisation of the work completed so far (feasibility studies and first intercomparison) and discusses its further development.

Additional information

Authors: QUEVAUVILLER P, CEC Bruxelles (BE);GRIEPINK B, CEC Bruxelles (BE);URE A, University of Strathclyde, Glasgow (GB);MUNTAU H, JRC Ispra (IT)
Bibliographic Reference: Article: International Journal of Environmental Analytical Chemistry, Vol. 51 (1993) pp. 129-134
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