A simple, sensitive and validated HPLC method has been developed to
determine esomeprazole and domperidone in tablet dosage form. The
chromatographic separation was achieved on a hyperchrome C-18
column column (4.6 x 150mm, 5 particle size) analytical column
using a mixture of acetonitrile: Phosphate buffer (pH 5.0) in the
ratio of 60:40 (v/v) used as the mobile phase, at a flow rate of
1.0 ml/min and detector wavelength at 290 nm. The validation of the
proposed method was carried out for specificity, linearity,
accuracy, precision, limit of detection, limit of quantitation and
robustness. Linearity of method was found to be in concentration
range 10-50 g/ml for esomeprazole and 5-25 g/ml for domperidone
with correlation coefficient greater than 0.9999. The retention
time of domperidone and esomeprazole was found to be 2.92 and 3.91
min respectively. The method can be used for simultaneous
determination of esomeprazole and domperidone."
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