[Chemical components of essential oils from Meconopsis oliverana and their antioxidant activity].

Objective: To study the chemical components of essential oils from Meconopsis oliverana and their antioxidant activity.

Method: The essential oil was extracted by steam distillation, and GC-MS analysis was used to identify its constituents. The OH free radical scavenging activity of the essential oils was evaluated with an enzyme mark instrument by assay of the ability of DPPH free radical scavenging.