Discussion on Analysis of Artemisinin and Piperaquine Tablets by Infrared Spectroscopy / 世界科学技术-中医药现代化

Infrared (IR) spectroscopy was employed to identify the Artemisinin and Piperaquine Tablets. Artemisinin and piperaquine was extracted separately by different solvents, and IR spectra were collected. IR absorption spectrum of the extract was concordant with the reference spectrum recorded in the Atlas of Infrared Spectra of Drugs, except for a group of small absorptions at 1 574 cm-1 for the artemisinin extract. It was concluded that IR method is stable and accurate, which can be used to identify the Artemisinin and Piperaquine Tablets.