FLUOROMETRIC CR(VI) AND CR(III) SPECIATION WITH CRYSTAL VIOLET

Authors
KABASAKALIS V
Citation
V. Kabasakalis, FLUOROMETRIC CR(VI) AND CR(III) SPECIATION WITH CRYSTAL VIOLET, Analytical letters, 26(10), 1993, pp. 2269-2275
Citations number
11
Categorie Soggetti
Chemistry Analytical
Journal title
Analytical letters → ACNP
ISSN journal
00032719
Volume
26
Issue
10
Year of publication
1993
Pages
2269 - 2275
Database
ISI
SICI code
0003-2719(1993)26:10<2269:FCACSW>2.0.ZU;2-A
Abstract
A simple fluorimetric determination of Cr(VI) in the presence of Cr(II I) is described. This determination is based on the fluorescence, prod uced from the ion-association complex between the Crystal violet catio n and the anionic complex, formed between Cr(VI) and excess of I-. Thi s fluorescence is not observed when Cr(III) is used instead of Cr(VI). The fluorescence intensity is linear over the concentration range of 0-60 mug/l. The method was applied in potable and sea waters.