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Chromatograms. (a) Excipient mixture, (b) artemether and lumefantrine at 0.1 and 0.6 mg/mL, respectively. (c) Lumefantrine at 0.012 mg/mL. Column: Symmetry C18, mobile phase: Ethanol 96%, and 10 mM of acetic acid pH 3.35 (63:37, v/v), 0.5 mL/min, 210 nm.
