Ginsenosides in Commercial Ginseng Products Analyzed by Liquid Chromatography-Tandem Mass Spectrometry

Table 3

Parameters used for multiple reaction monitoring (MRM) of ginsenosides and internal standard.

Ginsenoside	Precursor ions (Da)	Product ions (Da)	Cone voltage (V)	Collision energy (eV)
Rb1	1108.29	221.2	95	60
		323.0	95	50
Rb2	1078.27	450.5	95	45
		766.6	95	45
Rb3	1078.27	292.8	90	50
		946.2	90	50
Rc	1078.27	784.1	95	50
		947.4	95	45
Rd	946.15	622.5	90	40
		784.5	90	30
Re	946.15	638.6	95	40
		784.5	95	40
Rg1	800.00	476.2	100	40
		638.3	100	25
Rg3	784.00	460.4	95	40
		622.5	95	35
Digitoxin	763.60	373.3	90	55
		503.3	90	30