TABLE 2.

Multiple reaction monitoring parameters of nine chemical components in PM (and internal standard).

Component	Molecular weight	Parent ion	Product ion	Fragmentor	Collision energy (V)
TSG	406.39	404.9	243.1	156	27
Emodin	270.24	268.7	224.8	170	24
Physcion	284.27	283.1	240	170	23
Aloe-emodin	270.2369	268.9	239.6	150	24
Catechin	290.27	289	245.1	150	12
E-glu	432.11	430.9	268.8	165	27
P-glu	446.404	444.9	282.7	100	16
Gallic acid	170.12	168.9	125	110	11
Resveratrol	228.24	227	185	140	15
Puerarin (IS)	416.378	415	295	165	20