HP 5973 MSD Hardware Manual page 50

 CI operation
CI Operation
This chapter provides information and instructions about operating an
HP 5973 CI MSD in CI mode. Most of the material is related to methane
chemical ionization but one section discusses the use of other reagent gases.
The following topics are covered in this chapter
• Setting the reagent gas flow to optimize the pressure in the CI source
• Checking for air leaks
• PCI and NCI autotunes
• Verify sensitivity performance
N O T E Sequencing is not appropriate for automating methods that use different reagent gases or
gas flows, as these parameters must be set
Tuning macros, beginning tune files, and menus for CI operation are
included with the updated ChemStation software. The software provides
instructions for setting the reagent gas flow and for performing CI
autotunes.
Autotunes are provided for PCI with methane reagent gas and for NCI with
any reagent gas.
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