UPLC-MS/MS Method for Simultaneous Determination of Three Major Metabolites of Mequindox in Holothurian

Table 1

MS/MS parameters for MQCA, 1-DMEQ, and BDMEQ in the positive electrospray ionization mode.

Compound	Parent ion (m/z)	Daughter ion (m/z)	Cone voltage (V)	Collision energy (eV)
1-DMEQ	203	143	30	25
		185		17
BDMEQ	187.1	145.1	33	25
		159.15		20
MQCA	189	92	19	24
		143.1		17

Quantitative ion.