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Article: The nano-Au self-assembled glassy carbon electrode for selective determination of epinephrine in the presence of ascorbic acid

TitleThe nano-Au self-assembled glassy carbon electrode for selective determination of epinephrine in the presence of ascorbic acid
Authors
Issue Date2007
PublisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/colsurfb
Citation
Colloids And Surfaces B: Biointerfaces, 2007, v. 54 n. 2, p. 230-235 How to Cite?
AbstractGold nanoparticles were self-assembled to the modified glassy carbon electrode (GC) with cysteamine (CA) to prepare the nano-Au/CA/GC modified electrode. The electrochemical behavior of epinephrine (EP) on the modified electrode was explored with cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Epinephrine gave a pair of redox peaks at Epa = 0.190 mV and Epc = -0.224 mV (versus SCE), respectively. The nano-Au/CA/GC modified electrode shows an excellent electrocatalytic activity for the oxidation of EP. The modified electrode could be used to determine EP in the presence of ascorbic acid (AA). The response of catalytic current with EP concentration shows a linear relation in the range of 1.0 × 10-7 to 5.0 × 10-4 mol L-1 with the correlation coefficient of 0.998. The detection limit is 4.0 × 10-8 mol L-1. The modified electrode exhibited a good reproducibility, sensitivity and stability for the determination of EP injection. © 2006 Elsevier B.V. All rights reserved.
Persistent Identifierhttp://hdl.handle.net/10722/182332
ISSN
2015 Impact Factor: 3.902
2015 SCImago Journal Rankings: 1.105
ISI Accession Number ID
References

 

DC FieldValueLanguage
dc.contributor.authorYang, Zen_US
dc.contributor.authorHu, Gen_US
dc.contributor.authorChen, Xen_US
dc.contributor.authorZhao, Jen_US
dc.contributor.authorZhao, Gen_US
dc.date.accessioned2013-04-23T08:18:57Z-
dc.date.available2013-04-23T08:18:57Z-
dc.date.issued2007en_US
dc.identifier.citationColloids And Surfaces B: Biointerfaces, 2007, v. 54 n. 2, p. 230-235en_US
dc.identifier.issn0927-7765en_US
dc.identifier.urihttp://hdl.handle.net/10722/182332-
dc.description.abstractGold nanoparticles were self-assembled to the modified glassy carbon electrode (GC) with cysteamine (CA) to prepare the nano-Au/CA/GC modified electrode. The electrochemical behavior of epinephrine (EP) on the modified electrode was explored with cyclic voltammetry (CV) and differential pulse voltammetry (DPV). Epinephrine gave a pair of redox peaks at Epa = 0.190 mV and Epc = -0.224 mV (versus SCE), respectively. The nano-Au/CA/GC modified electrode shows an excellent electrocatalytic activity for the oxidation of EP. The modified electrode could be used to determine EP in the presence of ascorbic acid (AA). The response of catalytic current with EP concentration shows a linear relation in the range of 1.0 × 10-7 to 5.0 × 10-4 mol L-1 with the correlation coefficient of 0.998. The detection limit is 4.0 × 10-8 mol L-1. The modified electrode exhibited a good reproducibility, sensitivity and stability for the determination of EP injection. © 2006 Elsevier B.V. All rights reserved.en_US
dc.languageengen_US
dc.publisherElsevier BV. The Journal's web site is located at http://www.elsevier.com/locate/colsurfben_US
dc.relation.ispartofColloids and Surfaces B: Biointerfacesen_US
dc.subject.meshAscorbic Aciden_US
dc.subject.meshCarbonen_US
dc.subject.meshElectrodesen_US
dc.subject.meshEpinephrine - Analysisen_US
dc.subject.meshGlassen_US
dc.subject.meshGolden_US
dc.subject.meshMetal Nanoparticlesen_US
dc.subject.meshNanotechnologyen_US
dc.titleThe nano-Au self-assembled glassy carbon electrode for selective determination of epinephrine in the presence of ascorbic aciden_US
dc.typeArticleen_US
dc.identifier.emailZhao, J: zhao0065@e.ntu.edu.sgen_US
dc.identifier.authorityZhao, J=rp01745en_US
dc.description.naturelink_to_subscribed_fulltexten_US
dc.identifier.doi10.1016/j.colsurfb.2006.10.033en_US
dc.identifier.pmid17158037-
dc.identifier.scopuseid_2-s2.0-33846393607en_US
dc.relation.referenceshttp://www.scopus.com/mlt/select.url?eid=2-s2.0-33846393607&selection=ref&src=s&origin=recordpageen_US
dc.identifier.volume54en_US
dc.identifier.issue2en_US
dc.identifier.spage230en_US
dc.identifier.epage235en_US
dc.identifier.isiWOS:000244473900015-
dc.publisher.placeNetherlandsen_US
dc.identifier.scopusauthoridYang, Z=8527936800en_US
dc.identifier.scopusauthoridHu, G=14626256100en_US
dc.identifier.scopusauthoridChen, X=8509885100en_US
dc.identifier.scopusauthoridZhao, J=8393022100en_US
dc.identifier.scopusauthoridZhao, G=7403296064en_US

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