Rapid Determination of Isomeric Benzoylpaeoniflorin and Benzoylalbiflorin in Rat Plasma by LC-MS/MS Method

Figure 1

MS/MS spectra and structures of the two analytes and IS: (a) IS, parent ion: m/z 417.38; daughter ion: m/z 296.90; (b) BP, parent ion: m/z 583.18; daughter ion: m/z 165.05; (c) BA, parent ion: m/z 607.18; daughter ion: m/z 589.10.

(a)

(b)

(c)