Fig. 2

HPLC chromatograms of the stability results of CLR (800 µg mL⁻¹) and MOX (80 µg mL⁻¹); the samples were subjected to (a) photodegradation, (b) thermal degradation, (c) acidic degradation, (d) basic degradation, and (e) oxidative degradation; the stationary phase was C-18, mobile phase of acetonitrile: methanol: water: acetic acid (56: 36: 7.5: 0.50 by volume), and flow rate 2 mL min⁻¹ at 254 nm