1. Sulfadiazine, 0.1 μg mL
-1
; 2. sulfamerazine, 0.05 μg mL
-1
; 3. sulfametoxydiazine, 0.1 μg mL
-1
; 4. sarafloxacin, 0.07 μg mL
-1
Figure 4:
Chromatograms of the analyte standard solutions.