title: A validated RP-HPLC method for the determination of mosapride citrate in bulk drug samples and pharmaceutical formulations.
abstract: Mosapride citrate, a selective serotonin 5-HT4 agonist, is a novel and potent gastroprokinetic drug. So far no assay procedure has been reported for the estimation of this drug either in bulk drug samples, pharmaceutical formulations or in biological samples. A rapid and sensitive high-performance liquid chromatographic method was developed for the estimation of mosapride citrate in bulk drug samples and pharmaceutical dosage forms. Risperidone was used as an internal standard (ISD). A HPLC system consisting of gradient pump, reverse phase C-18 analytical column, a variable UV-visible detector set at 274 nm and an integrator was used. The mobile phase consisted of acetonitrile: 0.02 M potassium dihydrogen phosphate buffer (pH adjusted to 4.0 with o-phosphoric acid) in the ratio of 50:50 (v/v), and was pumped at 1 ml/min at 40 degrees C. The drug and ISD were eluted at 8.10 and 2.27 min, respectively. The peak drug/ISD area ratio versus drug concentration relationship was linear (r = 0.9998). The method was validated for its linearity, precision and accuracy. The calibration curve was linear in the range of 0.5 to 30 micrograms/ml. The lower detection limit was found to be 0.23 microgram/ml. The intra- and inter-day variation was found to be less than 1% showing high precision of the assay method. The mean recovery of the drug from the solutions containing 2, 4 or 10 micrograms/ml was 101.55 +/- 0.97% indicating high accuracy of the proposed HPLC method.
authors.affiliation: Department of Pharmaceutical Sciences, Andhra University, Visakhapatnam, India. krishnaysr112@rediffmail.com
authors.forename: Y S R
authors.initials: YS
authors.lastname: Krishnaiah
authors.forename: T K
authors.initials: TK
authors.lastname: Murthy
authors.forename: D G
authors.initials: DG
authors.lastname: Sankar
authors.forename: V
authors.initials: V
authors.lastname: Satyanarayana
mesh_terms: D001549:Benzamides / Q000032:analysis*; D002138:Calibration; D002851:Chromatography, High Pressure Liquid; D018492:Dopamine Antagonists / Q000032:analysis*; D007202:Indicators and Reagents; D009025:Morpholines / Q000032:analysis*; D019999:Pharmaceutical Solutions / Q000032:analysis; D012044:Regression Analysis; D015203:Reproducibility of Results; D013056:Spectrophotometry, Ultraviolet; D013607:Tablets
chemical_list: D001549:Benzamides; D018492:Dopamine Antagonists; D007202:Indicators and Reagents; D009025:Morpholines; D019999:Pharmaceutical Solutions; D013607:Tablets; C062720:mosapride