a stability indicating hplc method for determination of mebeverine in the presence of its degradation products and kinetic study of its degradation in oxidative condition
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abstract
an hplc method for determination of mebeverine hydrochloride (mh) in the presence of its degradation products was developed. the degradation of mh was studied under hydrolysis, oxidative and photolysis stress conditions. under alkaline, acidic and oxidative conditions, degradation of mh was observed. the separation was performed using a symmetry c 18 column and a mixture of 50 mm kh 2 po 4 , acetonitrile and tetrahydrfuran (thf) (63:35:2; v/v/v) as the mobile phase. no interference peaks from degradation products in acidic, alkaline and oxidative conditions were observed. the linearity, accuracy and precision of the method were studied. the method was linear over the range of 1-100 mg/ml mh (r 2 >0.999) and the cv values for intra-day and inter-day variations were in the range of 1.0-1.8%. the limit of quantification (loq) and the limit of detection (lod) of the method were 1.0 and 0.2 mg/ml, respectively. determination of mh in pharmaceutical dosage forms was performed using the developed method. furthermore the kinetics of the degradation of mh in the presence of hydrogen peroxide was investigated. the proposed method could be a suitable method for routine quality control studies of mebeverine dosage forms.
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Journal title:
research in pharmaceutical sciencesجلد ۹، شماره ۳، صفحات ۱۹۹-۰
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