Electrochemistry of cefditoren pivoxil and its voltammetric determination
By Ta?demir, ?brahim H
Published in Arabian Journal of Chemistry
2016
Abstract
Abstract Electrochemical behavior of cefditoren pivoxil (CTP) was studied via experimental electrochemical methods and theoretical calculations performed at B3LYP/6-31+G(d)//AM1 level. Experimental studies were carried out based on an irreversible 4e?/4H+ reduction peak at ca. ?0.8 V on hanging mercury drop electrode (HMDE) and irreversible 1e?/1H+ oxidation of {CTP} at ca. 0.8 V on glassy carbon electrode (GCE) versus Ag/AgCl, {KCl} (3.0 M) in Britton-Robinson buffer at pH 6.0 and 4.0, respectively. Tentative reduction and oxidation mechanisms were proposed based on computational and experimental results. Square-wave adsorptive stripping voltammetric methods have been developed and validated for quantification of {CTP} in different samples. Linear working range was established as 0.15-15.0 ?M for {HMDE} and 1.0-50.0 ?M for GCE. Limit of quantification (S/N = 10) was calculated to be (0.10