Highly Sensitive Differential Pulse and Square Wave Voltammetric Methods for Determination of Strontium Ranelate in Bulk and Pharmaceutical Dosage Form
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- 作者：Mohamed Rizk ; Maha M. Abou El-Alamin ; Hassan A. M. Hendawy and Mervat I. Moawad
- 关键词：Differential Pulse Voltammetry ; Square Wave Voltammetry ; Strontium Ranelate.
- 刊名：Electroanalysis
- 出版年：2016
- 出版时间：April 2016
- 年：2016
- 卷：28
- 期：4
- 页码：770-777
- 全文大小：1813K
- ISSN：1521-4109
文摘
The voltammetric behavior of Strontium Ranelate (SR) was studied using Cyclic (CV), differential pulse (DPV) and square wave (SWV) voltammetry. CV showed two well-defined, irreversible, diffusion-controlled anodic peaks using Britton-Robinson buffer, pH 2.0 at Pencil graphite (PGE), Carbon paste (CPE) and glassy carbon (GCE) electrodes. The peak current-concentration relationship was rectilinear over the range 1.0–10.0, 1.0–11.25 and 2.5–24.0 µg/mL at PGE, CPE and GCE respectively, with a minimum detectability of 0.17, 0.24 and 0.39 µg/mL for peak 1 and 0.19, 0.27 and 0.51 µg/mL for peak 2. Recoveries showed the high accuracy of the method; 99.8 %, 99.5 % and 99.7 % at PGE, CPE and GCE respectively for peak 1 and 100.1 %, 99.9 % and 99.7 % at PGE, CPE and GCE respectively for peak 2. Hence DPV and SWV were conducted for the quantitative determination of SR in its pure and pharmaceutical dosage form. the method was validated and the results were in good agreement with those obtained from the reported method.