2000 MS Hardware Maintenance
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Chemical Ionization Options
acquisition in the Command field and click OK. In this example the method is
EI_GC.mth.
Since the same EI_GC method will be used later in the list highlight the AutoLink
button in the list and click on Fill Down.
The EI_GC method is now selected for all entries in the SampleList. The final
step in the process is to click on the AutoLink field for each acetonitrile CI sample
and substitute the method ACN_CI. After this has been done, the correct GC/MS
methods are specified for all entries in the SampleList.
Multiple CI Reagents in Consecutive Runs
If unique GC and MS methods for all three reagents have been set up, it is
possible to acquire data either in EI mode or with any of the CI reagents by
simply selecting the right GC/MS method for each run. In the following example,
a single sample in Rack 1, Vial 1 of the 8200 AutoSampler is used to acquire
data in EI, acetonitrile CI, methanol CI, and methane CI modes. Use the
procedure outlined above for
GC/MS SampleList for Alternating EI/MS and
CI/MS Acquisitions
to create a SampleList as shown.
