The
major operating parameters for the Q-TOF MS were set as follows:
capillary voltage, 3.0 kV; cone voltage, 40 V; cone gas flow of 11 L/
h; collision energy, 50 eV; source temperature, 100 C; desolvation
temperature, 250 C; collision gas, argon; desolvation gas (nitrogen)
flow rate, 600 l/h; data acquisition range, m/z 100–1500 Da;
ionisation mode, positive. The data were collected by Mass-LynxTM
V4.1. software