Simultaneous Determination of Three Compounds in Rat Plasma by UHPLC-QQQ-MS/MS and Its Application to Pharmacokinetics of Banxia Baizhu Tianma Tang

Figure 1

The chemical structures of ephedrine (a), gastrodin (b), liquiritin (c), and I.S. (d).

(a)

(b)

(c)

(d)