Second-order data obtained from differential pulse voltammetry: Determination of tryptophan at a gold nanoparticles decorated multiwalled carbon nanotube modified glassy carbon electrode

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dc.contributor.authorKooshki, Mojtaba
dc.contributor.authorAbdollahi, Hamid
dc.contributor.authorBozorgzadeh, Somayyeh
dc.contributor.authorHaghighi, Behzad
dc.contributor.funderInstitute for Advanced Studies in Basic Sciences (IASBS), Iranen
dc.date.accessioned2022-08-31T09:04:11Z
dc.date.available2022-08-31T09:04:11Z
dc.date.issued2011-08-05
dc.date.updated2022-08-31T08:56:10Z
dc.description.abstractThree-way data obtained from different pulse heights of differential pulse voltammetry (DPV) was analyzed using multivariate curve resolution by alternating least squares (MCR-ALS) algorithm. Differential pulse voltammograms of tryptophan were recorded at a gold nanoparticles decorated multiwalled carbon nanotube modified glassy carbon electrode (GCE/MWCNTs-nanoAu). The determination of tryptophan was performed even in the presence of unexpected electroactive interference(s). Both the simulated and experimental data were non-bilinear. Therefore a potential shift algorithm was used to correct the observed shift in the data. After correction, the data was augmented and MCR-ALS was applied to the augmented data. A relative error of prediction of less than 8% for the determination of the simulated analyte of interest and tryptophan in synthetic samples indicated that the methodology employing voltammetry and second-order calibration could be applied to complex analytical systems.en
dc.description.sponsorshipInstitute for Advanced Studies in Basic Science, Zanjan, Iran (grant number G2011IASBS117)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationKooshki, M., Abdollahi, H., Bozorgzadeh, S. and Haghighi, B. (2011) 'Second-order data obtained from differential pulse voltammetry: Determination of tryptophan at a gold nanoparticles decorated multiwalled carbon nanotube modified glassy carbon electrode', Electrochimica Acta, 56 (24), pp. 8618-8624. doi: 10.1016/j.electacta.2011.07.049en
dc.identifier.doi10.1016/j.electacta.2011.07.049en
dc.identifier.endpage8624en
dc.identifier.issn0013-4686
dc.identifier.issued24en
dc.identifier.journaltitleElectrochimica Actaen
dc.identifier.startpage8618en
dc.identifier.urihttps://hdl.handle.net/10468/13518
dc.identifier.volume56en
dc.language.isoenen
dc.publisherElsevieren
dc.relation.urihttps://doi.org/10.1016/j.electacta.2011.07.049
dc.rights© 2021 Elsevier Ltd. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectGold nanoparticles decorated multiwalled carbon nanotube modified glassy carbon electrodeen
dc.subjectMultivariate curve resolution by alternating least squaresen
dc.subjectSecond order dataen
dc.subjectTryptophanen
dc.subjectGold nanoparticlesen
dc.titleSecond-order data obtained from differential pulse voltammetry: Determination of tryptophan at a gold nanoparticles decorated multiwalled carbon nanotube modified glassy carbon electrodeen
dc.typeArticle (peer-reviewed)en
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