OBJECTIVE To determine the contents of dencichine in Sanqi (Panax notoginseng) from the different regions, harvest times, commercial grades and different parts of plant.

• 目的分析不同产地、不同规格、不同采收期、植株不同部位三七中的三七素含量,并考察其变化规律,为三七的质量评价提供依据。