Dosagem de artemisinina em Artemisia annua L. por cromatografia líquida de alta eficiência com detecção por índice de refração

Artemisinin is a sesquiterpene lactone used in treatment of chloroquine-resistant malaria. This paper presents high-performance liquid chromatographic assay for artemisinin in leaves of A. annua using differential refractometer detector and a single step of clean-up in a silica cartridge. The average of recoveries were 95% and the limit of quantification was 0,21% p/p using 200 mg of the leaves. This method was found to be simple, robust and relatively rapid.