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Fig. 5 | Journal of Analytical Science and Technology

Fig. 5

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

Fig. 5

a Absorption spectra of the colored reaction product obtained from VP, SF, and SF-VP mixture reaction with 0.2% w/v NBD-Cl. b Fluorescence excitation (1) and emission (2) spectra of the reaction product of VP (5 μg/mL) with 0.2% w/v NBD-Cl. c Absorption spectra of the colored reaction product obtained from VP, SF, and SF-VP mixture reaction with MBTH in presence of the oxidant Fe(III) chloride

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