title: Determination of Montelukast Sodium and Bambuterol Hydrochloride in Tablets using RP HPLC.
abstract: An accurate, specific and precise assay level gradient reverse-phase high-performance liquid chromatographic method was developed for simultaneous determination of montelukast sodium and bambuterol hydrochloride in tablet dosage form. An inertsil ODS C-18, 5 mum column having 250x4.6 mm I.D. in gradient mode, with mobile phase A, containing 0.025 M sodium phosphate buffer: methanol (85:15) and mobile phase B, containing acetonitrile:methanol (85:15) was used at different time intervals. The flow rate was 1.5 ml/min and effluent was monitored at 218 nm. The retention times of montelukast sodium and bambuterol hydrochloride were 21.2 min and 5.8 min respectively. The linearity for both the drugs was in the range of 0.25-0.75 mg/ml with correlation coefficients of 0.9999 and 0.9996 for montelukast sodium and bambuterol hydrochloride, respectively.
authors.affiliation: Department of Pharmaceutical Chemistry, Government College of Pharmacy, Karad, 415 124, India.
authors.forename: Smita
authors.initials: S
authors.lastname: Patil
authors.forename: Y V
authors.initials: YV
authors.lastname: Pore
authors.forename: B S
authors.initials: BS
authors.lastname: Kuchekar
authors.forename: Aruna
authors.initials: A
authors.lastname: Mane
authors.forename: V G
authors.initials: VG
authors.lastname: Khire