Abstract
The present study was designed to develop and validate a simple and fast RP-HPLC method for simultaneously evaluating hydrochlorothiazide (HCTZ), amlodipine besylate (AML), and losartan potassium (LOS). An Eclipse plus C18 column (250 × 4.6 mm, i.d. 5 μm) is used as a stationary phase and a simple gradient elution system. The mobile phase "A" is ethanol, and mobile phase "B" is KH2PO4 (0.01 M; pH 3.5 adjusted with 1% orthophosphoric acid). From 0 to 3.2 min into the gradient elution, the ratio of mobile phase A: B is 10:90%, v/v, and from 3.2 to 12 min, the gradient elution ratio is changed into 50:50%, v/v. A photodiode array detector (PDA) demonstrates the separated peaks. The complete separation was achieved at the retention times of 4.4, 8.1 and 9.1 min for HCTZ, AML and LOS, respectively, and a universal 233.0 nm as a detection wavelength. The method's linearity, recovery, detection and quantification limits, precision, and accuracy have been statistically validated just before the successful real applications. The present study successfully investigated the degradation behavior of these medications when exposed to various stress conditions. Furthermore, the degradation products were effectively separated and identified. For the developed and reported comparable techniques, the current work presents a sustainability profile, which was proven with innovative assessment evaluation tools. The up-to-date ChlorTox Scale indicator, CALIFICAMET tool, RGB12 algorithm, Greenness Index tool through spider plots, white and green analytical chemistry principles, and green engineering concepts have merged. The comprehensive findings obtained from utilizing various tools and indicators consistently indicate that the developed method surpasses the previously mentioned ones in terms of its environmentally friendly and sustainable characteristics.
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.