Identification of Index Components of Scutellariae Radix and Quantitative Determination of Baicalin from Curde Drug Preparation Containing Bupleuri Radix

시호(柴胡)함유 한방제(漢方劑)중 황금(黃芩) 지표성분(指標成分)의 확인(確認) 및 Baicalin 정량(定量)

As a part of studies on the quality control of crude drug preparation, So-Shi-Ho-Tang, index components of Scutellariae Radix were identified by TLC and quantified by HPLC. Wogonin and baicalein were identified in ethyl ether fraction on silica gel plate with benzene/ethyl acetate (1 : 1, v/v). The content of baicalin was determined by HPLC on ${\mu}-Bondapak\;C_18$ column with 0.5%-phosphoric acid/acetonitrile (73 : 27, v/v). Its recovery rate in the extract granules, compared to the content in the Scutellariae Radix, was $52.1\;{\pm}\;0.7%$.