Kinetic determination of selenium using the reduction of nile blue with sulfide ions

Authors
Garifzyanov, AR Budnikov, GK Toropova, VF Gainutdinova, DF
Citation
Ar. Garifzyanov et al., Kinetic determination of selenium using the reduction of nile blue with sulfide ions, J ANALYT CH, 55(7), 2000, pp. 673-675
Citations number
10
Categorie Soggetti
Spectroscopy /Instrumentation/Analytical Sciences
Journal title
JOURNAL OF ANALYTICAL CHEMISTRY
ISSN journal
10619348 → ACNP
Volume
55
Issue
7
Year of publication
2000
Pages
673 - 675
Database
ISI
SICI code
1061-9348(200007)55:7<673:KDOSUT>2.0.ZU;2-B
Abstract
The catalytic effect of Se(IV) was first observed in the reaction of the re duction of Nile Blue with sulfide ions. Optimal conditions for the determin ation of selenium by this reaction were found. The dependence of the reacti on rate on the concentration of Se(IV) was linear in the concentration rang e 0.008-0.16 mu g/mL. Solvent extraction with dithiophosphoric acids was pr oposed for the separation of selenium from the interferents. A procedure fo r the extraction-kinetic determination of selenium with the detection limit 0.006 mu g/mL was developed.