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Fig. 4 | Journal of Analytical Science and Technology

Fig. 4

From: Eco-friendly analytical methods for the determination of compounds with disparate spectral overlapping: application to antiviral formulation of sofosbuvir and velpatasvir

Fig. 4

a Δ A absorption spectrum of 40 μg/mL SF and the synthetic mixture 0f 40 μg/mL SF and 10 μg/mL VP, b first derivative of Δ A overlapped absorption spectra of 40 μg/mL SF and synthetic mix of 40 μg/mL SF and 10 μg/mL VP, c Δ A absorbance spectra of SF in 0.1 N NaOH against SF of the same concentration in 0.1 N HCl, d first derivative of Δ A absorbance spectra of SF in 0.1 N NaOH against SF of the same concentration in 0.1 N HCl

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