Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34761
DC FieldValueLanguage
dc.contributor.authorZen, J.M.en_US
dc.contributor.author曾志明zh_TW
dc.contributor.authorChen, P.J.en_US
dc.date1998zh_TW
dc.date.accessioned2014-06-06T07:48:17Z-
dc.date.available2014-06-06T07:48:17Z-
dc.identifier.issn1040-0397zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/34761-
dc.description.abstractElectrochemically preanodized nontronite clay-modified electrodes were found to be very sensitive in the detection of dopamine and catechol by square-wave voltammetry. When preanodized in a neutral medium at +1.8 V (vs. Ag/AgCl) for 60 s, the clay-modified electrodes exhibit a marked enhancement of the current response for dopamine and catechol. The sensitivity of dopamine can be further improved at the preanodized clay-modified electrode with the addition of triethylamine. After 20 s preconcentration in phosphate buffer (DI-l 7.4) solution, linear calibration plots are obtained over 0-0.7 mu M and 0.7-15 mu M ranges with a detection limit (3 sigma) of 0.10 nM for catechol, As to dopamine, in the presence of 30 mu M triethylamine, linear calibration plots are obtained over 0-1 mu M and 1-10 mu M ranges and the detection limit is 0.056 nM.en_US
dc.language.isoen_USzh_TW
dc.relationElectroanalysisen_US
dc.relation.ispartofseriesElectroanalysis, Volume 10, Issue 1, Page(s) 12-15.en_US
dc.relation.urihttp://dx.doi.org/10.1002/(sici)1521-4109(199801)10:1<12::aid-elan12>3.3.coen_US
dc.relation.uri2-xen_US
dc.subjectnontroniteen_US
dc.subjectdopamineen_US
dc.subjectcatecholen_US
dc.subjectclay-modified electrodeen_US
dc.subjectsquare-wave voltammetryen_US
dc.subjectascorbic-aciden_US
dc.subjectelectrochemical detectionen_US
dc.subjectcarbon electrodesen_US
dc.subjectglassy-carbonen_US
dc.subjectbrainen_US
dc.titleAn ultrasensitive voltammetric method for dopamine and catechol detection using clay-modified electrodesen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1002/(sici)1521-4109(199801)10:1<12::aid-elan12>3.3.co;2-xzh_TW
item.languageiso639-1en_US-
item.openairecristypehttp://purl.org/coar/resource_type/c_18cf-
item.cerifentitytypePublications-
item.openairetypeJournal Article-
item.fulltextno fulltext-
item.grantfulltextnone-
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