LAUSR

The present work reports the voltammetric behavior of Zinc hexacyanoferrate (III) nanoparticles and their application in the detection of N-acetylcysteine. Two distinct ratios of water/formamide 10:0 (ZnH-1) and 4:6 (ZnH-2) were studied in the complexation reaction of Zn 2+ with [Fe III (CN)6] 3. The materials were characterized by Transmission Electron Microscopy (TEM) and Cyclic Voltammetry. The cyclic voltammograms of ZnH-1 and ZnH-2 showed a well-defined redox couple with formal potential (E θ' ) = 0.94 ± 0.01 V (=20 mVs -1 ; KCl 1.0 M)) attributed to the redox process [Fe II (CN)6]/[Fe III (CN)6] in the presence of Zn 2+ . The graphite paste electrode modified with ZnH-1 and ZnH-2 presents a sensitive and catalytic oxidation response for the determination of N-acetylcysteine respectively.