Development and Validation of a Stability-Indicating Greener HPTLC Method for the Estimation of Flufenamic Acid

The literature on ecofriendly/greener high-performance thin-layer chromatographic (HPTLC) methods for quantifying flufenamic acid (FFA) is scant. In order to develop and validate a stability-indicating greener HPTLC densitometry assay for FFA determination in marketed products, this research was conducted. The ecofriendly eluent system was composed of ethanol-water (70:30 v/v). FFA was measured at 290 nm of wavelength. The greenness scale of suggested analytical assay was derived using "Analytical GREENness (AGREE)" methodology. The suggested stability-indicating HPTLC assay was linear for FFA determination in 25-1400 ng/band range with a determination coefficient of 0.9974. The suggested analytical assay for FFA analysis was simple, rapid, accurate, precise, robust, selective, stability-indicating, and greener. The AGREE scale for the developed stability-indicating HPTLC assay was derived to be 0.77 utilizing AGREE methodology, indicating an outstanding greenness characteristic of the suggested densitometry technique. The ecofriendly HPTLC technique was able to detect FFA degradation product under forced degradation studies, indicating its stability-indication characteristics and selectivity. The amount of FFA in marketed tablets brand A and B was determined to be 101.28 and 99.17%, respectively, indicating the suitability of the suggested analytical technique in the assay of FFA in marketed products. These results indicated that FFA in marketed products may be routinely measured using the stability-indicating greener HPTLC technique.