Abstract
The manganese 3,4-(methylenedioxi)cinnamate (MnMCA) compound was synthesized and characterized using thermal analysis technique to determine purity as well as stoichiometry and infrared spectroscopic data to suggest the metal-ligand coordination. The feasibility of the MnMCA compound as modifier of carbon paste electrodes was studied via electrochemical techniques such as cyclic and linear sweep voltammetry. The modified carbon paste electrode (MCPE) presented a satisfactory electrocatalytic activity for propyl gallate (PG) oxidation. The study of the instrumental and experimental parameters as well as of the voltammetric behavior showed that the MCPE exhibits better analytical performance in the detection of the PG than the glassy carbon electrode and the unmodified carbon paste electrodes. The results obtained were satisfactory concerning the use of the target MCPE-MnMCA in electroanalytical applications and detection of PG antioxidant in biodiesel sample after a simple and fast step.
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