Fig. 3From: Rapid and validated UHPLC method for simultaneous determination of sofosbuvir, ledipasvir and paracetamol as commonly repurposed drugs for COVID-19 treatment: application in spiked human plasmaLinearity curves with regression equations in drug spiked plasma. A SOF (5–35 µg/ml) and B LDV (4–20 µg/ml) in presence of PAR as internal standard (10 µg/ml)Back to article page