VOLTAMMETRIC DETERMINATION OF DESLORATADINE IN PHARMACEUTICAL AND HUMAN URINE SAMPLES USING GLASSY CARBON ELECTRODE
Journal Title: International Journal of Pharmacy and Pharmaceutical Sciences - Year 2014, Vol 6, Issue 10
Abstract
Objective: The electrochemical behaviour of Desloratadine (DLTD) in pharmaceutical and human urine samples at glassy carbon electrode was investigated by cyclic voltammetry (CV) and square wave voltammetry (SWV).Methods: A well defined reduction peak was observed at potential -1.55V in phosphate buffer solution (PBS) in basic medium. The reduction process was observed to be irreversible over the pH range from pH 2.0 to pH 10.0. The influence of different parameters such as the effect of pH, scan rate and concentration of the drug was studied. The probable reaction mechanism involved in the reduction of DLTD was also proposed. A SWV method with good recovery and accuracy was obtained for the determination of DLTD in pharmaceutical formulations and urine samples.Results: The peak currents were found to be linearly dependent on the concentration range of 2.55x10-5to 1.5x10-3M of DLTD. The limit of detection (LOD) and limit of quantification (LOQ) were found to be 2.75x 10-9M, 3.20x 10-7 M respectively.Conclusion: The proposed method was successfully applied for determination of DLTD in pharmaceutical and human urine samples.Â
Authors and Affiliations
D. Sri Vidya, M. Siva Prasad, M. Vishnu Priya, K Roja, N. y Sreedhar
Keywords
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