Fig. 3From: Eco-friendly analytical methods for the determination of compounds with disparate spectral overlapping: application to antiviral formulation of sofosbuvir and velpatasvirGraphical plot of the (a) (D1 273/D1 299) and (b) D1 273/D1 355 ratio of VP-SF mixture in the sample cell versus SF in the reference cell for the determination of SFBack to article page