Journal article
Selective measurement of chromium(VI) by fluorescence quenching of ruthenium
Talanta (Oxford), Vol.48(2), pp.269-275
1999
DOI: 10.1016/S0039-9140(98)00245-8
PMID: 18967464
Abstract
A flow injection method is described for the selective measurement of chromium(VI) in aqueous solutions. This method is based on the dynamic quenching of ruthenium(II) fluorescence. The detection limit is 0.43 ppm and 40 samples can be analyzed per hour. Selectivity is demonstrated over ferrous, nickel, cupric and zinc cations and no effect is observed from sulfate, chloride, borate and phosphate. Some interference quenching was measured for cyanide and nitrate, but the method is more responsive to chromium(VI) by factors of 10.2 and 82, respectively. The effects of solution pH, carrier stream flow rate and ruthenium concentration are demonstrated. Results indicate the method is suitable for measuring chromium(VI) in effluents from electroplating baths.
Details
- Title: Subtitle
- Selective measurement of chromium(VI) by fluorescence quenching of ruthenium
- Creators
- Taha M.A Razek - Department of Chemistry and Optical Science and Technology Center, 230 Iowa Advanced Technology Laboratory, University of Iowa, Iowa, IA 52242, USAScott Spear - Department of Chemistry and Optical Science and Technology Center, 230 Iowa Advanced Technology Laboratory, University of Iowa, Iowa, IA 52242, USASaad S.M Hassan - Chemistry Department, Faculty of Science, Ain-Shams University, Cairo, EgyptMark A Arnold - Department of Chemistry and Optical Science and Technology Center, 230 Iowa Advanced Technology Laboratory, University of Iowa, Iowa, IA 52242, USA
- Resource Type
- Journal article
- Publication Details
- Talanta (Oxford), Vol.48(2), pp.269-275
- DOI
- 10.1016/S0039-9140(98)00245-8
- PMID
- 18967464
- NLM abbreviation
- Talanta
- ISSN
- 0039-9140
- eISSN
- 1873-3573
- Publisher
- Elsevier B.V
- Language
- English
- Date published
- 1999
- Academic Unit
- Center for Biocatalysis and Bioprocessing; Fraternal Order of Eagles Diabetes Research Center; Chemistry
- Record Identifier
- 9984216581102771
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