Abstract
In the present paper, a sensitive and selective chiral LC method has been developed for enantiomeric separation and determination of eight antihistamines in pharmaceutical formulations. Enantiomeric separation was achieved on the α1-acid glycoprotein-based chiral stationary phase known as Chiralpak AGP. The effects of the mobile phase composition, type and proportion of organic modifier and the concentration and pH of the buffer on retention and resolution were fully investigated. All enantiomers of target analytes were successfully separated with the mobile phase consisting of methanol and 10 mM ammonium acetate buffer, at a flow rate of 0.9 mL min−1. Calibration curve of each enantiomer was linear over the concentration range of 5.0–100 μg mL−1, with the correlation coefficient above 0.9990. The limits of detection and quantification were below 0.80 and 3.18 μg mL−1, respectively. The recoveries were in the range of 98.0–102.4% with the relative standard deviation lower than 2.88% for all enantiomers. The validated method was demonstrated to be suitable for the quality control of the enantiomeric composition of antihistamines present in pharmaceuticals. Finally, the proposed chiral LC method was applied to the determination of antihistamines enantiomers in commercially available tablets containing racemic mixtures of compounds. Quantitative results of the commercial tablets demonstrated that the difference between the declared and determined values did not exceed 1.45%, and chiral antihistamines drugs were present in the form of racemates.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.