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Article: LC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and application

TitleLC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and application
Authors
Issue Date1994
PublisherPreston Publications, Inc. The Journal's web site is located at http://www.j-chrom-sci.com/
Citation
Journal Of Chromatographic Science, 1994, v. 32 n. 4, p. 157-161 How to Cite?
AbstractThe application of the intense ultraviolet π-π* transition absorption band at 261 nm for indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile phase additive is studied. The results are compared with those obtained using the conventional absorption band at 447 nm for the d-π* charge transfer transition. Variation of the concentration of Ru(phen)3(ClO4)2 is shown to influence the sensitivity of the methods with absorption at the two wavelengths. Use of a low Ru complex concentration is found to reduce noise and increase the gain in absorbance per mole RuL3 2+ liberated, resulting in an increase in the signal-to-noise ratio. Using 0.01mM Ru(phen)3(ClO4)2 and 261 nm as the absorption wavelength, the detection limits of the method as measured by 2 times the noise level for F-, Cl-, Br-, and NO3 - are 5 ppb (0.1 ng), 5 ppb (0.1 ng), 10 ppb (0.2 ng), and 10 ppb (0.2 ng), respectively.
Persistent Identifierhttp://hdl.handle.net/10722/167521
ISSN
2015 Impact Factor: 1.32
2015 SCImago Journal Rankings: 0.448

 

DC FieldValueLanguage
dc.contributor.authorFung, YSen_US
dc.contributor.authorTam, WMen_US
dc.date.accessioned2012-10-08T03:08:03Z-
dc.date.available2012-10-08T03:08:03Z-
dc.date.issued1994en_US
dc.identifier.citationJournal Of Chromatographic Science, 1994, v. 32 n. 4, p. 157-161en_US
dc.identifier.issn0021-9665en_US
dc.identifier.urihttp://hdl.handle.net/10722/167521-
dc.description.abstractThe application of the intense ultraviolet π-π* transition absorption band at 261 nm for indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile phase additive is studied. The results are compared with those obtained using the conventional absorption band at 447 nm for the d-π* charge transfer transition. Variation of the concentration of Ru(phen)3(ClO4)2 is shown to influence the sensitivity of the methods with absorption at the two wavelengths. Use of a low Ru complex concentration is found to reduce noise and increase the gain in absorbance per mole RuL3 2+ liberated, resulting in an increase in the signal-to-noise ratio. Using 0.01mM Ru(phen)3(ClO4)2 and 261 nm as the absorption wavelength, the detection limits of the method as measured by 2 times the noise level for F-, Cl-, Br-, and NO3 - are 5 ppb (0.1 ng), 5 ppb (0.1 ng), 10 ppb (0.2 ng), and 10 ppb (0.2 ng), respectively.en_US
dc.languageengen_US
dc.publisherPreston Publications, Inc. The Journal's web site is located at http://www.j-chrom-sci.com/en_US
dc.relation.ispartofJournal of Chromatographic Scienceen_US
dc.titleLC separation and indirect detection of analyte anions using Ru(phen)3(ClO4)2 as a mobile-phase additive. Wavelength selection and applicationen_US
dc.typeArticleen_US
dc.identifier.emailFung, YS:ysfung@hku.hken_US
dc.identifier.authorityFung, YS=rp00697en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.scopuseid_2-s2.0-0028408552en_US
dc.identifier.volume32en_US
dc.identifier.issue4en_US
dc.identifier.spage157en_US
dc.identifier.epage161en_US
dc.publisher.placeUnited Statesen_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US
dc.identifier.scopusauthoridTam, WM=7102605527en_US

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