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

Figure 6

Electrophoretogram of stand solution (20 μg/mL). Separation conditions: running buffer, 35 mmol/L H₃BO₃-Na₂B₄O₇ (pH 8.8); separate voltage, 25 kV; operating temperature, 22°C; the detection wavelength, 275 nm; injection, 0.5 psi, 4 s. Peak identification was as in Figure 2.