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Research Article Open access CC BY 4.0

Simultaneous Determination of Camylofin Dihydrochloride and Paracetamol Using Differential Pulse Voltammetry in Micellar Media

Emad Mohamed Hussien, Israa Abd El-Ghafar Mohammed, Sawsan Abdel-Moneim Abd El-Razeq

International Research Journal of Pure and Applied Chemistry · pp. 1–12 · Published 1 Jan 2019

10.9734/IRJPAC/2018/45823

Abstract

Simple and sensitive differential pulse voltammetric (DPV) method has been developed for simultaneous determination of camylofin-2HCl and paracetamol. The electrochemical oxidation of camylofin was studied at carbon paste electrode using cyclic and differential pulse voltammetry. A reproducible and reliable oxidation current peak was obtained at pH 7. The oxidation current was enhanced in presence of sodium dodecylsulphate as an erosion reagent. Under optimal conditions the oxidation current was proportional to camylofin concentration in the range from 5.0 to 100.0 µM. Besides, the method was linear for paracetamol which is an active ingredient in the concentration range from 5.0 to 1000.0 µM. The proposed DPV method was selective for simultaneous determination of the two drugs with mean recovery of 99.58±2.13% and 99.44±0.57% for camylofin-2HCl and paracetamol, respectively.  The method was validated according to ICH guidelines and successfully applied for the determination of the two drugs in combined pharmaceutical formulations.

Camylofin electro-oxidation carbon paste electrode differential pulse voltammetry micellar media.

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