TABLE 1.

Parameters used for multiple reaction monitoring

Compound	Precursor ion	Production	Fragmentor voltage	Collision energy
	m/z	m/z	V	eV
Allocryptopine	370.2	188.2	110	25
Cryptopine	370.2	205.2	110	35
Protopine	354.2	189.2	113	30
Cheilanthifoline	326.2	178.2	113	25
Canadine	340.2	176.2	113	25
O-Demethylcryptopine	356.2	190.2	110	35
Tetrahydrocolumbamine	342.2	178.2	128	25
Stylopine	324.2	176.2	113	32
Laudanosine	358.2	206.1	110	25
N-Methylporphyroxine	386.2	206.2	110	25
Papaverubine B	386.2	354.2	110	25
Glaudine	400.2	206.2	110	25
Sinactine	340.2	192.2	113	25
N-Methylstylopine	338.2	190.2	110	35
Tetrahydropalmatine	356.2	192.2	134	28