SEPARATION AND ANALYSIS OF AMLODIPINE /BENAZEPRIL COMBINATION IN CAPSULES BY A NOVEL ION PAIR LIQUID CHROMATOGRAPHY
- Vol.11(1)
- M P Innovare Academic Sciences Pvt Ltd 2019
- 107-112p.
Objective: The objective of this study was to develop and validate a novel ion -pair liquid chromatography method , in order to separate and assay of amlodipine /benazepril combination in capsules . This method was a fast , practical and additional choice in quality control laboratories . Method s: The chromatographic conditions comprised of a classical C 18 -type stationary phase ( 250 × 4.6 mm, 5 μ ), with a mobile phase consisting of: 45 % of 10 -3 Result s: The method was validated for linearity with correlation coefficients very close to one , the accu racy with mean recovery values between 95.0 -105.0% , precision with relative standard deviations of the calculated concentrations less than 5.0% and specificity in the presence of degradation products and excipients . M of cetrimide and 55% acetonitrile . The f low rate was 1 ml /mi n; the detection wavelength was at 242 nm, under ambient temperature . Conclusio n: The results presented in this paper show ed that the developed method was fast and applicable , for the separation and determination of amlodipine /benazepril combination in capsules