Simultaneous Determination of Malachite Green, Chloramphenicols, Sulfonamides, and Fluoroquinolones Residues in Fish by Liquid Chromatography-Mass Spectrometry

Table 2

Instrument conditions for target compounds analysis.

Ionization mode		ESI^+; ESI^−
LC condition	Mobile phase	A	0.1% formic acid and 2 mM ammonium acetate
		B	0.1% formic acid and acetonitrile
	Gradient list	Time (min)	0.1	8	10	11	13	13.11	19
		A (%)	98	20	20	2	2	98	98
		B (%)	2	80	80	98	98	2	2
	Total flow	0.25 mL/min
	Column temperature	40°C
MS condition	Source temperature	550°C
	Curtain gas	20 psi
	Collision gas	Medium
	Gas1	60 psi
	Gas2	40 psi
	Ion spray voltage	5000 v