Fig. 2From: 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 pure bulk. A SOF (5–60.0 µg/mL), B LDV (2–22 µg/mL) and C PAR (1–22 µg/mL)Back to article page