with chromatographic column ASB-C18 (5 μm, 150 mm × 4.6 mm). The mass spectrometry used electrospray ionization (ESI) of 5.0 kV, 350 °C and positive ion mode with m/z range 50–1500. The mobile phase was water: acetonitrile = 90:10; the flow rate was 0.3 mL/min; sample size was 5 μL.