Agilent Technologies 7000 Series Operating Manual page 129

Operating in CI Mode
6
Setting Up Your MS to Operate in CI Mode 130
Operating the CI MS 131
High Vacuum Pressure in CI Mode 132
Other Reagent Gases 133
CI Autotune 135
The CI Flow Control Module 137
To Operate the Reagent Gas Flow Control Module 139
To Set a Reagent Gas Flow 141
To Perform a CI Autotune 142
To Pumpdown and Switch from EI to CI Mode 144
This chapter provides information and instructions for operating the
7000/7010 Series TQ GC/MS system in CI mode. Most of the information in the
preceding chapter is also relevant.
Most of the material is related to methane CI, but one section discusses the use of
other reagent gases.
The software contains instructions for setting the reagent gas flow and for
performing CI autotunes. Autotunes are provided for positive CI (PCI) with methane
reagent gas and for negative CI (NCI) with any reagent gas.
If you are using the Agilent Intuvo 9000 Gas Chromatograph with your MS,
Chemical Ionization (CI) is not currently supported.
7000/7010 Series TQ GC/MS Operating Manual 129