Artículos de revistas
Development Of A Sensor Based On Tetracyanoethylenide (litcne)/poly-l- Lysine (pll) For Dopamine Determination
Registro en:
Electrochimica Acta. , v. 50, n. 13, p. 2675 - 2683, 2005.
134686
10.1016/j.electacta.2004.11.012
2-s2.0-16344378453
Autor
Luz R.D.C.S.
Damos F.S.
De Oliveira A.B.
Beck J.
Kubota L.T.
Institución
Resumen
The catalytic oxidation of dopamine (DA) at a LiTCNE (lithium tetracyanoethylenide) film modified electrode is studied by electrochemical approaches. The immobilization of LiTCNE was performed by a polymer (poly-l-lysine) to prepare this modified electrode and its application for dopamine (DA) determination is described in detail. The modified electrode showed a high activity for the electrooxidation of dopamine (DA) at E p = 0.20 V versus SCE. The modified electrode presented a wide linear response range for DA from 0.01 up to 10 μmol l-1 by differential pulse voltammetry (DPV) with a detection limit of 0.5 nmol l-1. The repeatability of the proposed sensor evaluated in term of relative standard deviation was 3.2% for n = 10. The sensor was applied for the determination of dopamine in pharmaceutical formulations and the average recovery for these samples was 101.9 (±0.1)%. © 2004 Elsevier Ltd. All rights reserved. 50 13 2675 2683 Cooper, J.R., Bloom, F.E., Roth, R.H., (1982) The Biochemical Basis of Neuropharmacology, , Oxford University Press Oxford, UK Damier, P., Hirsch, E.C., Agid, Y., Graybiel, A.M., (1999) Brain, 122, p. 1437 Michael, D.J., Wightman, R.M., (1999) J. Pharm. Biomed. Anal., 19, p. 33 Wighman, R.M., May, L.J., Michael, A.C., (1988) Anal. Chem., 60, pp. 769A Lane, R.F., Blaha, C.D., (1990) Langmuir, 6, p. 56 Janata, J., (1992) Anal. Chem., 64, pp. 196R Ye, J., Baldwin, R.P., (1988) Anal. Chem., 60, p. 1979 Murray, R.W., (1984) Electroanalytical Chemistry, p. 191. , A.J. Bard Marcel Dekker New York Redepenning, J.G., (1987) Trends Anal. Chem., 6, p. 18 Damos, F.S., Sotomayor, M.D.T., Kubota, L.T., Tanaka, S.M.C.N., Tanaka, A.A., (2003) Analyst, 128, p. 255 Marzal, P.C., Chumbimuni-Torres, K.Y., Hoehr, N.F., Neto, G.O., Kubota, L.T., (2004) Sens. Actuators, 100, p. 333 Miura, T., Masaki, Y., (1994) Tetrahedron Lett., 35, p. 7961 Miura, T., Masaki, Y., (1994) J. Chem. Soc., Perkin Trans., 1, p. 1659 Luz, R.C.S., Damos, F.S., Oliveira, A.B., Beck, J., Kubota, L.T., (2004) Talanta, 64, p. 935 Khoo, S.B., Foley, J.K., Pons, S., (1986) J. Electroanal. Chem., 215, p. 273 Sttephan, S., Maenz, K., Stadermann, D., (1992) Liebigs Ann. Chem., p. 1033 Pereira, A.C., Santos, A.S., Kubota, L.T., (2002) Quim. Nova, 25, p. 1012 Oyama, N., Anson, F.C., (1979) J. Am. Chem. Soc., 101, p. 3450 Oyama, N., Anson, F.C., (1980) Anal. Chem., 52, p. 1192 Shigehara, K., Oyama, N., Anson, F.C., (1981) Inorg. Chem., 20, p. 518 Aleman, C., Zanuy, D., Casanovas, J., (2003) J. Phys. Chem., 107, p. 4151 Muthukuma, M., (2004) J. Chem. Phys., 120, p. 9343 Moreira, J.C., Zhao, R., Fogg, A.G., (1990) Analyst, 115, p. 1565 Anson, F.C., Ohsaka, T., Saveant, J.M., (1983) J. Phys. Chem., 87, p. 640 Webster, O.W., Mahler, W., Benson, R.E., (1962) J. Am. Chem. Soc., 84, p. 3678 Zhu, Z., Na-Qiang, L., (1998) Electroanalysis, 10, p. 643 Hall, E.A.H., Skinner, N.G., Jung, C., Szunerits, S., (1995) Electroanalysis, 7, p. 830 Bard, A.J., Faulkner, L.R., (1980) Electrochemical Methods, Fundamentals and Applications, , Wiley New York Ren, X., Puckup, P.J., (1997) J. Electroanal. Chem., 420, p. 251 Raj, C.R., Takeyoshi, T., Ohsaka, T., (2003) J. Electroanal. Chem., 543, p. 127 Andriex, C.P., Dumas-Bouchiat, J.M., Savéant, J.M., (1982) J. Electroanal. Chem., 131, p. 1 Laviron, E., (1981) J. Electroanal. Chem., 124, p. 1 Richard, J.A., Whitson, P.E., Evans, D.H., (1975) J. Electroanal. Chem., 63, p. 3111 Papouchado, L., Sandford, R.W., Petrie, G., Adams, R.N., (1975) J. Electroanal. Chem., 65, p. 275 Wang, Q., Dong, D., Li, N., (2001) Bioelectrochemistry, 54, p. 169 Ferreira, M., Dinelli, L.R., Wohnrath, K., Batista, A.A., Oliveira Jr., O.N., (2004) Thin Solid Films, 446, p. 301 (1987) Analyst, 112, p. 199. , Analytical Methods Commitee Zhou, D.M., Ju, H.X., Chen, H.Y., (1996) J. Electroanal. Chem., 408, p. 219 Carvalho, R.M., Oliveira, O.N., Kubota, L.T., (2000) Anal. Chim. Acta, 420, p. 109 Carvalho, R.M., Kubota, L.T., Rath, S., (2003) J. Electroanal. Chem., 548, p. 19 Winter, E., Carvalho, R.M., Kubota, L.T., Rath, S., (2000) J. Braz. Chem. Soc., 14, p. 564 Copra, A., (2001), M.Sc. Thesis, University of Sarajevo, Sarajevo