ANALYTICAL METHOD DEVELOPMENT AND VALIDATION FOR ESTIMATION OF CLOPIDOGREL BY DERIVATIVE SPECTROSCOPY (FOURTH ORDER)
About Authors:
Gunjan Kalyani*, Vishal S. Deshmukh, Pranita Kashyap, Ram D. Bawankar, Yogesh Vaishnav, Deepak Biswas
Shri Rawatpura Sarkar Institute of Pharmacy,
Behind power grid, Kumhari, Durg, Chhattisgarh
*kalyani.gunjan@yahoo.in
Abstract
Clopidogrel bisulfate is an inhibitor of adenosine diphosphate (ADP)-induced platelet aggregation acting by direct inhibition of ADP binding to its receptor and of the subsequent ADP-mediated activation of the glycoprotein GPIIb/IIIa complex. Objective of the present study is to develop a simple, sensitive, accurate, precise and rapid derivative spectrophotometric method for the estimation of clopidogrel in pure form. For the estimation of clopidogrel, solvent system employed was 0.1 N HCl and wavelength of detection (λdet) was 284.3 nm for fourth order derivative spectroscopy. The linearity was obtained in the range 42 – 336 µg/ml. The limit of detection is 6.7 µg/ml and limit of quantification was fund to be 20.4 µg/ml. Obtained results showed that there is minimum intra day and inter day variation. The developed method was validated and recovery studies were also carried out. Sample recovery using the above method was in good agreement with their respective labeled claim, thus suggesting the validity of the method and non-interference of formulation excipients in the estimation. Fourth order derivative spectroscopic method is simple, rapid and reproducible and further it can be used for the analysis.