dc.contributorUniversidade Estadual Paulista (Unesp)
dc.date.accessioned2014-05-27T11:22:03Z
dc.date.available2014-05-27T11:22:03Z
dc.date.created2014-05-27T11:22:03Z
dc.date.issued2006-12-01
dc.identifierECS Transactions, v. 3, n. 10, p. 87-95, 2006.
dc.identifier1938-5862
dc.identifier1938-6737
dc.identifierhttp://hdl.handle.net/11449/69271
dc.identifier10.1149/1.2357249
dc.identifier2-s2.0-33847015243
dc.identifier0000-0002-2296-1393
dc.description.abstractThe present work reports the use of a screen-printed carbon electrode (SPCE) modified by poly-L-histidine film to determine chromium (VI). Stable films can be formed by direct addition of PH solution 1 % (w/v) on the electrode surface, followed by heating at 80°C during 5 min. Calibration curves can be constructed for Cr(VI) from 1.0 × 10-5 mol L-1 to 7.0 × 10-5 mol L-1 Cr (VI) in acetate buffer pH 4 using a preconcentration step of 60s at open circuit potential. A relative standard deviation of 3.2% was for five determination of 4.0 × 10 -5 mol L-1 Cr (VI). The method was successful applied to determination of Cr(VI) in wastewater samples from a leather dyeing industry. copyright The Electrochemical Society.
dc.languageeng
dc.relationECS Transactions
dc.relation0,225
dc.relation0,225
dc.rightsAcesso aberto
dc.sourceScopus
dc.subjectCalibration curves
dc.subjectScreen printed carbon electrode (SPCE)
dc.subjectVoltammetric determination
dc.subjectCalibration
dc.subjectCarbon
dc.subjectDyeing
dc.subjectElectrodes
dc.subjectpH effects
dc.subjectWastewater
dc.subjectChromium compounds
dc.titleScreen-printed carbon electrode modified with poly-L-histidine applied to voltammetric determination of chromium (VI)
dc.typeActas de congresos


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