Jump to main content
Jump to site search

Issue 2, 2001
Previous Article Next Article

Certification of the extractable contents of Cd, Cr, Cu, Ni, Pb and Zn in a freshwater sediment following a collaboratively tested and optimised three-step sequential extraction procedure

Author affiliations

Abstract

Sequential extraction procedures have been used during the last decades to study and determine trace element mobility in aquatic sediments. However, the results obtained are operationally defined and, therefore, the significance of the analytical results is related to the extraction scheme used. So, there is a need for suitable reference materials for this type of study to enable the validation of the methodologies and to control the quality of the measurements. This paper describes the preparation of a sediment reference material, BCR-701, the homogeneity and stability studies and the analytical work performed for the certification of the extractable contents of some trace elements, following a collaboratively tested and optimised sequential (three-step) extraction procedure. The paper contains all the results and gives the methods used to certify the extractable contents (mass fractions expressed as mg kg−1 on a dry matter basis) of Cd, Cr, Cu, Ni, Pb and Zn in all steps. Moreover, indicative values are given for the aqua regia extractable contents of the six elements in the sediment and the residue obtained after sequential extraction.

Back to tab navigation
Please wait while Download options loads

Publication details

The article was received on 21 Dec 2000, accepted on 09 Feb 2001 and first published on 13 Mar 2001


Article type: Paper
DOI: 10.1039/B010235K
Citation: J. Environ. Monit., 2001,3, 243-250
  •   Request permissions

    Certification of the extractable contents of Cd, Cr, Cu, Ni, Pb and Zn in a freshwater sediment following a collaboratively tested and optimised three-step sequential extraction procedure

    M. Pueyo, G. Rauret, D. Lück, M. Yli-Halla, H. Muntau, Ph. Quevauviller and J. F. López-Sánchez, J. Environ. Monit., 2001, 3, 243
    DOI: 10.1039/B010235K

Search articles by author