Authors: Gümgüm, Bahattin; Öztürk, Gülşen

Source: Chemical Speciation and Bioavailability, Volume 13, Number 1, February 2001 , pp. 25-29(5)

Publisher: Science Reviews 2000 Ltd

Abstract:

After determination of total heavy metal concentrations in Tigris river sediments, a Tessier sequential extraction technique and a modified form using a microwave heating procedure were applied. Recoveries of total heavy metals from the sediment samples using the microwave and conventional techniques were reasonably comparable, in spite of a big difference in time required. 44-46% of Co, 24-36% of Cu, 69-81% of Ni, and 55-73% of Zn were found in the residual fraction (i.e. not bioavailable).

Keywords: heavy metals; microwave digestion; sediment; sequential extraction; speciation

Document Type: Research article

DOI: http://dx.doi.org/10.3184/095422901782775453

Affiliations: 1: Department of Chemistry, University of Dicle,.412.248 80 39), 21280 Diyarbakyr/Turkey, Fax: +90

Publication date: 2001-02-10

More about this publication?

• Chemical Speciation & Bioavailability covers a rapidly expanding area in environmental science.

  Research on the interactions between the chemical forms and behaviour of toxic compounds and their subsequent biological uptake, metabolism and ecological fate involves many scientific fields. These studies are often published in discipline-specific journals, leading to inadequate review and information scatter. This situation hinders both the development of an international community of experienced colleagues and the open flow of information and discussion. Additionally, the importance of speciation and bioavailability research to the development of pollution law and control technologies is being increasingly appreciated by environmental regulatory agencies throughout the world.

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