Artigo
Simple electroanalytical method for determination of guanosine in biological sample
Fecha
2010-12-01Registro en:
Analytical and Bioanalytical Electrochemistry, v. 2, n. 4, p. 202-211, 2010.
2008-4226
2-s2.0-84871855455
0000-0002-2296-1393
Autor
Universidade Estadual Paulista (Unesp)
Resumen
A poly glutamic acid film modified electrode exhibited a catalytic response toguanosine oxidation potential and higher peak current value. Linear concentration curve was obtained in the concentration interval of 1.0 a 10.0 μmol L-1 in 0.04 mol L-1 B-R buffer pH 2.0 with a detection limit of 0.198 μmol L-1. The electrode was used for the determination of guanosine in the potential of +1.1 V (vs. Ag/AgCl) using differential pulse voltammetry (DPV) at urine sample with good recovery. © 2010 by CEE.