Figure 1From: Quality of anti-malarial drugs provided by public and private healthcare providers in south-east NigeriaHPLC chromatogram showing the separation of mixture of standards of chloroquine (CQ), quinine (QU), sulphadoxine (SUL) and pyrimethamine (PYR) all at 10 μg/ml; dihydroartemisinin (DHA) and artesunate (AS) at 4 mg/ml.Back to article page