CR(III) AND CR(VI) SPECIATION MEASUREMENTS IN ENVIRONMENTAL REFERENCEMATERIALS

Citation
K. Vercoutere et al., CR(III) AND CR(VI) SPECIATION MEASUREMENTS IN ENVIRONMENTAL REFERENCEMATERIALS, Mikrochimica acta, 123(1-4), 1996, pp. 109-117
Citations number
8
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Chemistry Analytical
Journal title
ISSN journal
0026-3672
Volume
123
Issue
1-4
Year of publication
1996
Pages
109 - 117
Database
ISI
SICI code
0026-3672(1996)123:1-4<109:CACSMI>2.0.ZU;2-#
Abstract
The production of reference materials for quality control of Cr(III) a nd Cr(VI) speciation in environmental samples is described. It concern s in the first place two lyophilized solutions containing Cr(III) and Cr(VI) at different concentrations, respectively representative for dr inking water and filter leaching solutions, and in the second place fi lters loaded with welding dust. Twenty-four laboratories with experien ce in the field participated in an intercomparison exercise organized to validate the suitability of the reference materials and to gauge th e state-of-the-art of Cr speciation throughout Europe. The outcome of this exercise is discussed.