Carbon clearance test is carried out in Kunming mice to observe the effect of the chloroform extract of the Yantai introduced from Canada Echinacea purpurea on the function of mono macrophage system.

• 用昆明种小鼠进行碳粒廓清实验 ；观察烟台从加拿大引种的紫锥菊的氯仿提取物对小鼠单核巨噬细胞系统功能的影响 .