Abstract
A simple, sensitive, precise, rapid, and reliable high-performance thin-layer chromatographic (HPTLC) method for the simultaneous estimation of sparfloxacin (SPF) and flurbiprofen (FLB) in bulk drug as well as in dual drug loaded poly-(lactic-co-glycolic acid) (PLGA) nanoparticles was developed. In this method, aluminumbacked silica gel 60 F254 plates (20 × 10 cm: 200 μm thickness) were used as stationary phase and chloroform-methanol-formic acid (7.5:1:1, v/v) as an optimized mobile phase. Developed chromatogram was scanned at 258 nm, the wavelength of maximum absorption SPF and FLB. Regression analysis of the calibration data showed an excellent linear relationship between peak area versus drug concentration. Linearity was found to be in the range of 100–600 ng spot−1 and 40–800 ng spot−1 for SPF and FLB, respectively. The suitability of the developed HPTLC method for simultaneous estimation of SPF and FLB was established by validating it as per the ICH guidelines. The limits of detection (LOD) and quan...
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