Fig. 5From: Mathematical processing of absorption as green smart spectrophotometric methods for concurrent assay of hepatitis C antiviral drugs, Sofosbuvir and Simeprevir: application to combined pharmaceutical dosage forms and evaluation of the method greennessZero order spectra of (—) SOF 20.0 µg mL−1, (– – –) SMV 20.0 µg mL−1 and (⋯⋯) mixture containing 10 µg mL.−1 of each drug, showing the two selected wavelengths (261 and 294 nm)Back to article page