Fig. 4From: 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 greennessThe resolved spectrum of SOF in the mixture from (a → d) at λmax 260 nm in different concentration (5.0, 10.0, 20.0 and 30.0 µgmL−1, respectively) by using ratio subtraction methodBack to article page