2 research outputs found

    QUANTITATIVE DETERMINATION OF PLATINUM AND PALLADIUM IN DONEPEZIL HYDROCHLORIDE USING INDUCTIVELY COUPLED PLASMA – OPTICAL EMISSION SPECTROSCOPY

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    Objective: To develop a precise, accurate, sensitive and selective analytical method using inductively coupled plasma – optical emission spectroscopy (ICP-OES) for the determination of platinum and palladium in Donepezil hydrochloride raw material, a reversible acetyl cholinesterase inhibitor.Methods: The method developed and validated uses dry ashing for the extraction of platinum and palladium from Donepezil hydrochloride. Ash thus obtained was leached into an acidic solution followed by analysis of platinum and palladium using ICP-OES at wavelength 306.471 nm and 340.458 nm respectively. The method was studied for the various validation parameters including precision, accuracy, linearity, etc. for both the elements.Results: The method was found to be linear in the wide working range of 0.2 µg/ml to16 µg/ml with a correlation coefficient of 0.9998 for platinum and 0.1µg/ml to 8µg/ml with a correlation coefficient of 0.9999 for palladium. The recoveries of platinum and palladium from the spiked samples of Donepezil hydrochloride at three different spiking levels were found to be in the range of 86.87 – 98.59% for both platinum and palladium. The limit of detection was found as 0.1 µg/ml and 0.05 µg/ml for platinum and palladium respectively while the limit of quantitation was found to be 0.2 µg/ml and 0.1 µg/ml for platinum and palladium.Conclusion: The results of the validation studies indicate that the proposed method can be used for the simultaneous determination of platinum and palladium in Donepezil hydrochloride to ensure the quality and purity of Donepezil hydrochloride as a raw material for formulating the pharmaceutical formulations.Â

    Method Development and Validation for Determination of Voglibose in Tablet Formulation Using LC-MS/MS

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    Voglibose is a potent α glucosidase inhibitor, used for the treatment of diabetes mellitus. For quantitative determination of voglibose in pharmaceutical formulations of low doses, simple, sensitive, accurate and precise LC-MS/MS method using electrospray ionization in positive mode was developed and validated. The method was found linear in the concentration range of 25.0-1200 ηg/mL with a correlation coefficient of 0.9998. The limit of detection (LOD) of the method was found to be 1.5 ηg/mL and limit of quantitation (LOQ) was achieved at 3.0 ηg/mL. The recoveries of voglibose from spiked samples at different concentration levels were found in the range of 98-102%. The proposed method was found suitable for quantitation of voglibose and for the determination of uniformity of content of the dosage units of the tablet formulations
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