The head column pressure was 30 kPa. The mass spectrometer was operated in ion monitoring (SIM) mode with an electron impact ionization of 70 eV, an electron multiplier voltage of 1288 V, and an ion source at 230 C.
The head column pressure was 30 kPa. The mass spectrometer was operated inion monitoring (SIM) mode with an electron impact ionization of 70 eV, anelectron multiplier voltage of 1288 V, and an ion source at 230 C.