Please use this identifier to cite or link to this item: http://hdl.handle.net/11455/34806
DC FieldValueLanguage
dc.contributor.authorZen, J.M.en_US
dc.contributor.author曾志明zh_TW
dc.contributor.authorKumar, A.S.en_US
dc.contributor.authorLee, S.C.en_US
dc.contributor.authorShih, Y.en_US
dc.date2007zh_TW
dc.date.accessioned2014-06-06T07:48:21Z-
dc.date.available2014-06-06T07:48:21Z-
dc.identifier.issn1040-0397zh_TW
dc.identifier.urihttp://hdl.handle.net/11455/34806-
dc.description.abstractWe successfully demonstrated microliter (mu L) volume determination of Mercury (Hg) using an in-built screen-printed three electrodes containing partially crosslinked poly(4-vinlyipyridine) (designated as pcPVP) modified carbon-working, carbon-counter, and Ag+-quasireference electrodes (SPE/pcPVP) in a pH 4 acetate buffer solution with 2 M KCl by using the square wave anodic stripping voltammetric (SWASV) technique. Instrumental and solution phase conditions were systematically optimized. Experiments were carried out by simply placing a 500 mu L-droplet of Hg containing real sample mixed with the base electrolyte on the SPE/pcPVP surface. The SPE/Ag+ quasi-reference system shifted the Hg-SWASV detection potential ca. 250 mV positive, but the quantitative current values were appreciably similar to that of a standard Ag/AgCl reference electrode. Under optimal condition, the calibration graph is linear in the window of 100-1000 ppb of the Hg droplet system with a detection limit of 69.5 ppb (S/N = 3). Finally real sample assays were demonstrated for prohibited cosmetic Hg containing skin-lightening agents in parallel with ICP-OES measurements.en_US
dc.language.isoen_USzh_TW
dc.relationElectroanalysisen_US
dc.relation.ispartofseriesElectroanalysis, Volume 19, Issue 22, Page(s) 2369-2374.en_US
dc.relation.urihttp://dx.doi.org/10.1002/elan.200703990en_US
dc.subjectmercuryen_US
dc.subjectpoly(4-vinyl pyridine)en_US
dc.subjectscreen-printed electrodeen_US
dc.subjectmicroanalysisen_US
dc.subjectperformance liquid-chromatographyen_US
dc.subjectatomic fluorescence spectrometryen_US
dc.subjectcarbon-paste electrodeen_US
dc.subjecttrace mercuryen_US
dc.subjectvoltammetric determinationen_US
dc.subjectinorganic mercuryen_US
dc.subjectpreconcentrationen_US
dc.subjectmethylmercuryen_US
dc.subjectwatersen_US
dc.subjectionsen_US
dc.titleMicroliter volume determination of cosmetic mercury with a partially crosslinked poly(4-vinylpyridine) modified screen-printed three-electrode portable assemblyen_US
dc.typeJournal Articlezh_TW
dc.identifier.doi10.1002/elan.200703990zh_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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