chlorophenols

1) as mobile phase and using arctiin as contrast,to determine the contents of Arctiin,Arctigenin,Lappaol C and Lappaol H with corrected factor mehod.

1)为流动相,以牛蒡苷为对照,用校正因子法测定牛蒡苷、牛蒡苷元、拉帕酚C和拉帕酚H的含量。