Development and Validation of a Simple Spectrophotometric Method for Quantitative Determination of Sodium Diclofenac in ModifiedRelease Tablets

被引:1
作者
Alkassab, Razan Shoujaa [1 ]
Hilal, Yumen [1 ]
Swed, Amin [1 ]
机构
[1] Al Baath Univ, Fac Pharm, POB 77,Damascus Highway, Homs, Syria
来源
BRAZILIAN JOURNAL OF ANALYTICAL CHEMISTRY | 2023年 / 10卷 / 39期
关键词
sodium diclofenac; UV spectrophotometry; method validation; modified-release tablets; quantitative determination; POLYMER;
D O I
10.30744/brjac.2179-3425.AR-35-2022
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
In this study, a rapid, simple, cost-effective and accurate spectrophotometric method was developed for the determination of sodium diclofenac in modified release tablets using ethanol 96% as an available and non-toxic solvent. Sodium diclofenac standard solution was scanned under UV (200-400 nm) in a 1 cm quartz cell to determine the maximum absorption wavelength which was 285 nm. This method was validated in accordance with the requirements of the International Conference on Harmonization (ICH), and the calibration curve showed linearity in the studied concentration range (5-30 mu g mL(-1)) with correlation coefficient R-2 = 0.9993. The relative standard deviation of the accuracy studies was within the acceptable range (<2%). This method also achieved an excellent recovery ratio (Mean recovery +/- S.D. = 100.44% +/- 0.81) with high sensitivity (limit of detection 1.10 mu g mL(- 1) and quantitation limit of 3.34 mu g mL(-1)). The developed method applied successfully to determine sodium diclofenac in four commercial pharmaceuticals products (A, B, C and D) marketed locally as modified-release tablets. The product C showed the highest assay value 106% and product B showed the lowest value 98%. Therefore, we recommend using this method to quantitatively determine sodium diclofenac in pharmaceutical dosage forms.
引用
收藏
页码:70 / 79
页数:10
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