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1 2010

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Simultaneous RP-HPLC analysis of atenolol, hydrochlorothiazide, and losartan potassium in a tablet formulation

Thomas A. B, Chavan U. B, Nanda R. K, Kothapalli L. P, Jagdale S. N, Dighe S. B, Deshpande A. D

Acta Chromatographica

2010

Vol. 22, no. 2

219--226

Simultaneous analysis of atenolol (Atn), hydrochlorothiazide (Hctz) and losartan potassium (Los) in solid dosage forms has been achieved by reversed-phase high-performance liquid chromatography on a C 18 column with a 0.035 M potassium dihydrogen orthophosphate-acetonitrile gradient as mobile phase and UV detection at 225 nm. The retention times for Atn, Hctz, and Los were 2.91, 4.75, and 7.52 min, respectively, with mean recoveries of 99.67, 99.89, and 100.69%. The method was validated in accordance with ICH guidelines. Because of its simplicity and high precision and accuracy, the method can be used for analysis of atenolol, hydrochlorothiazide and losartan potassium in pharmaceutical preparations.