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. 2021 Mar 18;1159:338418. doi: 10.1016/j.aca.2021.338418

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Fig. 4 — SW stripping voltammograms for 25 μg mL⁻¹ favipiravir in surfactant-free BR buffer with different pHs (2.0–12.0) recorded using CPT-BDD. Inset: the plots of E_p vs. pH. Accumulation period 30 s at open-circuit condition; SWV parameters: frequency, 50 Hz; step potential, 8 mV; pulse amplitude, 30 mV.