Rapid and Simple Determination of Sarafloxacin and Difloxacin in Beef by Capillary Electrophoresis Coupled with Solid-Phase Extraction

Table 2

Recoveries of fluoroquinolone extracted with different solvent (%).

Eluent	SAR		DIF
	Recovery (%)	SD	Recovery (%)	SD
Dichloromethane	54.0	0.95	58.0	0.70
Acetonitrile	85.4	0.98	82.0	1.41
Methanol	92.2	1.23	89.1	0.53
4% ammonia-methanol	98.5	1.18	99.8	1.45