Cefradine

Experimental Section
Instruments and Reagent
Experiments were performed on a TriSepTM-2010 Capillary Electrochromatography system (Shanghai Unimicro Analytical Technologies Co., Ltd.) with a 0-30kV high voltage power supply, a high speed scanning UV detector, a solvent delivery system and HW system software.
Reagent： methanol（HPLC grade）；deionized water；cefradine dispersible tablet
Conditions
Column：Capillary C18
Mobile phase：Methanol/water/3.86%NaAc/4%HAc = 1536/400/30/6
Back pressure：2000 Psi
Flow：0.2 ml/min
Wavelength：254 nm
Temperature：Room temperature
Voltage：-10 kV
Results

Figure 1 Capillary Electrochromatogram of cefradine，-10.0 kV/-1.0μA
1．cefradine