Fig. 4From: Insights of different analytical approaches for estimation of budesonide as COVID-19 replication inhibitor in its novel combinations: green assessment with AGREE and GAPI approachesFirst-order derivative spectra of a 6 µg mL−1 BUD and b 25 µg mL−1 AZL in acetonitrile, where BUD measured at 265 nm (zero crossing for AZL)Back to article page