Pharmacokinetic Effects of l-Tetrahydropalmatine on Ketamine in Rat Plasma by Ultraperformance Liquid Chromatography Tandem Mass Spectrometry

Table 1

MRM parameters for drugs and IS.

Drugs	Parent ion	The cluster voltage (V)	Daughter ion	Collision energy (eV)
KET	238.1	40	179.1	25
			125.1	40
NK	224.1	40	207.1	19
			125.1	32
IS	275		230	25

Quantitative ion.