Table 2.

MS parameters

Parameter	Value
Sheath gas flow rate	40 psi
Aux gas flow rate	10 psi
Sweep gas flow rate	2 psi
Spray voltage	2.7 kV
Capillary temperature	300°C
Collision energy	40 eV
Peak width	6 s
S-lens RF level	50
AGC target	3E+06
Maximum injection time	500 msec