title: Simultaneous UV Spectrophotometric Estimation of Ambroxol Hydrochloride and Levocetirizine Dihydrochloride.
abstract: A novel, simple, sensitive and rapid spectrophotometric method has been developed for simultaneous estimation of ambroxol hydrochloride and levocetirizine dihydrochloride. The method involved solving simultaneous equations based on measurement of absorbance at two wavelengths 242 nm and 231 nm, the gamma max of ambroxol hydrochloride and levocetirizine dihydrochloride, respectively. Beer's law was obeyed in the concentration range 10-50 mug/ml and 8-24 mug/ml for ambroxol hydrochloride and levocetirizine dihydrochloride respectively. Results of the method were validated statistically and by recovery studies.
authors.affiliation: Department of Pharmaceutical Quality Assurance, Manipal College of Pharmaceutical Sciences, Manipal-576 104, India.
authors.forename: S Lakshmana
authors.initials: SL
authors.lastname: Prabhu
authors.forename: A A
authors.initials: AA
authors.lastname: Shirwaikar
authors.forename: Annie
authors.initials: A
authors.lastname: Shirwaikar
authors.forename: C Dinesh
authors.initials: CD
authors.lastname: Kumar
authors.forename: G Aravind
authors.initials: GA
authors.lastname: Kumar