Shaista Hamid, Anwar Ejaz Beg, Iyad Naeem Muhammad, Sohail Hassan, Amir Hassan, Arfa Akram, Neyama Alladin.
Development and validation of HPLC method for the determination of Candesartan in human plasma.
Pak J Pharm Sci Jan ;36(6):2323-7.

Candesartan (CAN), an ARB-blocker, antihypertensive, was analyzed in human plasma by a simple, accurate and precise RP-HPLC (reverse phase-High performance liquid chromatography assay method which was then validated for its accuracy, specificity and precision. The mobile phase has a constitution of acetone, diethylamine and distilled water, while Phosphoric acid was used to adjust the pH to 2.5±0.1. This mobile phase was run at 1.1ml/min and the fluorescence wavelength was set to 392 nm. A C-18 HPLC, column particle size (5 µm) Mediterranean Sea ® L x 1.D. 25cm x 4.6 mm (Supelcosil) , with auto sampler injection volume of 30µl ,an internal standard Valsartan was utilized for chromatographic detection. Candesartan took a retention time of 6±0.5 minutes. This method was validated by the parameters of selectivity, accuracy, precision, repeatability, reproducibility, recovery, linearity and stability. Candesartan?s calibration curves were found to be linear in the range of 200ng/ml to 3.125ng/ml and the coefficient of determination (r2 ) was found to be 0.99. Analytical recovery obtained was above 88%. Hence, this method has been found to be useful for determining Candesartan in plasma.

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