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Article: Development of CE-dual opposite carbon-fiber micro-disk electrode detection for peak purity assessment of polyphenols in red wine

TitleDevelopment of CE-dual opposite carbon-fiber micro-disk electrode detection for peak purity assessment of polyphenols in red wine
Authors
Issue Date2010
Citation
Electrophoresis, 2010, v. 31 n. 13, p. 2192-2199 How to Cite?
AbstractA new dual opposite carbon-fiber micro-disk electrode detector was fabricated and tested for hyphenation with CE in the polyphenol determination. Under optimized conditions, CE-dual opposite carbon-fiber micro-disk electrode was found able to baseline separate and determine five important polyphenols (trans-resveratrol, (+)-catechin, (-)-epicatechin, quercetin and gallic acid) in red wine within 16 min with low detection limit (0.031-0.21mg/L) and satisfactory repeatability (2.0-3.3% RSD, n = 5). The opposite dual electrode enables simultaneous determination of CE eluents for current ratio measured at +0.8 and +1.0 V versus Ag/AgCl for the peak purity assessment. The capability to identify the presence of co-migrating impurities in given polyphenol peaks was demonstrated in a mixed standard solution with overlapping (+)-catechin and (-)-epicatechin peaks and in commercial red wine with unknown impurities and confirming the reliability for polyphenol quantitation in red wine with matching migration time and current ratio. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.
Persistent Identifierhttp://hdl.handle.net/10722/168471
ISSN
2015 Impact Factor: 2.482
2015 SCImago Journal Rankings: 0.896
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorDu, Fen_US
dc.contributor.authorFung, YSen_US
dc.date.accessioned2012-10-08T03:19:22Z-
dc.date.available2012-10-08T03:19:22Z-
dc.date.issued2010en_US
dc.identifier.citationElectrophoresis, 2010, v. 31 n. 13, p. 2192-2199en_US
dc.identifier.issn0173-0835en_US
dc.identifier.urihttp://hdl.handle.net/10722/168471-
dc.description.abstractA new dual opposite carbon-fiber micro-disk electrode detector was fabricated and tested for hyphenation with CE in the polyphenol determination. Under optimized conditions, CE-dual opposite carbon-fiber micro-disk electrode was found able to baseline separate and determine five important polyphenols (trans-resveratrol, (+)-catechin, (-)-epicatechin, quercetin and gallic acid) in red wine within 16 min with low detection limit (0.031-0.21mg/L) and satisfactory repeatability (2.0-3.3% RSD, n = 5). The opposite dual electrode enables simultaneous determination of CE eluents for current ratio measured at +0.8 and +1.0 V versus Ag/AgCl for the peak purity assessment. The capability to identify the presence of co-migrating impurities in given polyphenol peaks was demonstrated in a mixed standard solution with overlapping (+)-catechin and (-)-epicatechin peaks and in commercial red wine with unknown impurities and confirming the reliability for polyphenol quantitation in red wine with matching migration time and current ratio. © 2010 Wiley-VCH Verlag GmbH & Co. KGaA.en_US
dc.languageengen_US
dc.relation.ispartofElectrophoresisen_US
dc.subject.meshCatechin - Analysis - Isolation & Purificationen_US
dc.subject.meshElectrophoresis, Capillary - Instrumentation - Methodsen_US
dc.subject.meshEquipment Designen_US
dc.subject.meshFlavonoids - Analysis - Isolation & Purificationen_US
dc.subject.meshFood Analysis - Methodsen_US
dc.subject.meshGallic Acid - Analysis - Isolation & Purificationen_US
dc.subject.meshLinear Modelsen_US
dc.subject.meshMicroelectrodesen_US
dc.subject.meshPhenols - Analysis - Isolation & Purificationen_US
dc.subject.meshPolyphenolsen_US
dc.subject.meshReproducibility Of Resultsen_US
dc.subject.meshWine - Analysisen_US
dc.titleDevelopment of CE-dual opposite carbon-fiber micro-disk electrode detection for peak purity assessment of polyphenols in red wineen_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.doi10.1002/elps.200900713en_US
dc.identifier.pmid20593393-
dc.identifier.scopuseid_2-s2.0-77954766633en_US
dc.identifier.hkuros176227-
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-77954766633&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume31en_US
dc.identifier.issue13en_US
dc.identifier.spage2192en_US
dc.identifier.epage2199en_US
dc.identifier.isiWOS:000280226900012-
dc.publisher.placeGermanyen_US
dc.identifier.scopusauthoridDu, F=39461171300en_US
dc.identifier.scopusauthoridFung, YS=13309754700en_US

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