Sousa e Silva JP
Laboratory of Pharmaceutical Technology, Faculty of Pharmacy, Department of Drug Sciences,
Rua Jorge Viterbo Ferreira, 228 4050-313 Porto
Portugal
Editorial
Preformulation
Author(s): Sousa e Silva JP
Sousa e Silva JP
A square wave voltammetry (SWV) method for the determination of trace amounts of paracetamol at carbon paste electrode modified with managanese (Mn-CPE) is proposed. The results showed that the Mn-CPE exhibited excellent electro catalytic activity to paracetamol. A quasi-reversible redox process of paracetamol at the modified electrode was obtained. The concentration of paracetamol and measuring solution pH was investigated. This electrochemical sensor shows an excellent performance for detecting paracetamol with a detection limit of 6.8×10-10 mol.L-1 with the relative standard deviation of 2.0% (n=7). The sensor was successfully applied to the determination of paracetamol in a real sample tablets with satisfactory results. .. View More»
DOI:
10.4172/2153-2435.1000e144