Meaning and validity of the sequential extraction procedure (SEA) for evaluation of heavy metals (HMs) mobility

Warning

This publication doesn't include Institute of Computer Science. It includes Faculty of Science. Official publication website can be found on muni.cz.

Authors	MÜLLEROVÁ Hana ZEMAN Josef
Year of publication	2003
Type	Article in Proceedings
Conference	Applied Environmental Geology in Central and Eastern Europe
MU Faculty or unit	Faculty of Science
Citation
Web	http://www.ubavie.gv.at/publikationen/Berichte/BE228.pdf
Field	Geochemistry
Keywords	sequential extraction analysis; heavy metal; bottom sediment
Description	It is evident that HMs partition between water and solid phase and binding mechanism HMs in bottom sediment is somewhat different than it is supposed. The amounts of metals bind in fractions distinguished by sequential extraction analysis are in dynamic equilibrium and are changed during sequential leaching (or metals are leached from all fractions during sequen-tial leaching). Based on these results it can be stated that using now wide spread methodol-ogy of sequential leaching analysis for estimation HMs mobility and bioavalability is very questionable and require accurate re-verification.
Related projects:	Geological Processes and their Environmental Impact - Contact of the Variscides and Alpides