dc.contributor | Universidade Estadual Paulista (Unesp) | |
dc.date.accessioned | 2014-05-27T11:22:03Z | |
dc.date.available | 2014-05-27T11:22:03Z | |
dc.date.created | 2014-05-27T11:22:03Z | |
dc.date.issued | 2006-12-01 | |
dc.identifier | ECS Transactions, v. 3, n. 10, p. 87-95, 2006. | |
dc.identifier | 1938-5862 | |
dc.identifier | 1938-6737 | |
dc.identifier | http://hdl.handle.net/11449/69271 | |
dc.identifier | 10.1149/1.2357249 | |
dc.identifier | 2-s2.0-33847015243 | |
dc.identifier | 0000-0002-2296-1393 | |
dc.description.abstract | The 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.language | eng | |
dc.relation | ECS Transactions | |
dc.relation | 0,225 | |
dc.relation | 0,225 | |
dc.rights | Acesso aberto | |
dc.source | Scopus | |
dc.subject | Calibration curves | |
dc.subject | Screen printed carbon electrode (SPCE) | |
dc.subject | Voltammetric determination | |
dc.subject | Calibration | |
dc.subject | Carbon | |
dc.subject | Dyeing | |
dc.subject | Electrodes | |
dc.subject | pH effects | |
dc.subject | Wastewater | |
dc.subject | Chromium compounds | |
dc.title | Screen-printed carbon electrode modified with poly-L-histidine applied to voltammetric determination of chromium (VI) | |
dc.type | Actas de congresos | |