Table 1.

Mass spectrometric conditions. The HPLC Agilent 1100 series was equipped with on line degasser and automatic injector coupled on-line with an Agilent 1100 LC/MSD SL quadrupole ion trap.

Agilent LC–MSD SL quadrupole ion trap settings
MS acquisition	ESI in positive ion mode
Nebulizer pressure	30 psi
Drying temperature	350 °C
Drying gas	7 L/min
	Ion Charge Control (ICC), target set at 30,000, maximum accumulation time at 20 ms