| dc.creator | de Cássia Silva Luz, Rita | |
| dc.creator | Damos, Flavio Santos | |
| dc.creator | de Oliveira, Adriano Bof | |
| dc.creator | Beck, Johannes | |
| dc.creator | Kubota, Lauro Tatsuo | |
| dc.date | 2004-Nov | |
| dc.date | 2015-11-27T12:58:43Z | |
| dc.date | 2015-11-27T12:58:43Z | |
| dc.date.accessioned | 2018-03-29T01:00:15Z | |
| dc.date.available | 2018-03-29T01:00:15Z | |
| dc.identifier | Talanta. v. 64, n. 4, p. 935-42, 2004-Nov. | |
| dc.identifier | 1873-3573 | |
| dc.identifier | 10.1016/j.talanta.2004.04.010 | |
| dc.identifier | http://www.ncbi.nlm.nih.gov/pubmed/18969693 | |
| dc.identifier | http://repositorio.unicamp.br/jspui/handle/REPOSIP/196116 | |
| dc.identifier | 18969693 | |
| dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1296349 | |
| dc.description | The reduction of 4-nitrophenol (4-NP) has been carried out on a modified glassy carbon electrode using cyclic and differential pulse voltammetry (DPV). The sensor was prepared by modifying the electrode with lithium tetracyanoethylenide (LiTCNE) and poly-l-lysine (PLL) film. With this modified electrode 4-NP was reduced at -0.7V versus SCE. The sensor presented better performance in 0.1moll(-1) acetate buffer at pH4.0. The other experimental parameters, such as concentration of LiTCNE and PLL, pulse amplitude and scan rate were optimized. Under optimized operational conditions, a linear response range from 27 up to 23200nmoll(-1) was obtained with a sensitivity of 3.057nAlnmol(-1)cm(-2). The detection limit for 4-NP determination was 7.5nmoll(-1). The proposed sensor presented good repeatability, evaluated in term of relative standard deviation (R.S.D.=4.4%) for n=10 and was applied for 4-NP determination in water samples. The average recovery for these samples was 103.0 (+/- 0.7)%. | |
| dc.description | 64 | |
| dc.description | 935-42 | |
| dc.language | eng | |
| dc.relation | Talanta | |
| dc.relation | Talanta | |
| dc.rights | fechado | |
| dc.rights | | |
| dc.source | PubMed | |
| dc.title | Voltammetric Determination Of 4-nitrophenol At A Lithium Tetracyanoethylenide (litcne) Modified Glassy Carbon Electrode. | |
| dc.type | Artículos de revistas | |
