Fig. 6From: Two novel UPLC methods utilizing two different analytical columns and different detection approaches for the simultaneous analysis of velpatasvir and sofosbuvir: application to their co-formulated tabletTypical chromatograms of co-formulated tablet of the studied drugs VPS (10 ng/mL) and SFV (40 ng/mL) under the described chromatographic conditions (Method 2A and B). a Method 2 utilizing column A. b Method 2 utilizing column BBack to article page