Detection of Falsified Antimalarial Sulfadoxine-Pyrimethamine and Dihydroartemisinin-Piperaquine Drugs Using a Low-Cost Handheld Near-Infrared Spectrometer

Figure 1

Preprocessed mean spectra in the 1085–1601 nm range. (a) SP samples. (b) DP samples.

(a)

(b)