Agilent Technologies 6100 Series Familiarization Manual page 34

3 Qualitative Data Analysis
Exercise 2. Examine mass spectra
Steps
6 Set the spectral options to do manual
background subtraction.
34
Detailed Instructions
a Click the icon to display
the Spectral Options dialog
box.
b Click the MS Reference tab.
c Under Reference Spectrum, click
Manual.
d Mark the check boxes for Ref1 and
Ref2. Note that the time ranges of
the reference spectra that you just
selected are specified there.
e Click OK.
Agilent 6100 Series Quadrupole LC/MS Systems Familiarization Guide
Comments
• The spectral options apply to all
subsequent spectra until you
change the options.
• If the chromatographic baseline
changes over the course of the run,
select new reference spectra that
are close in time to each peak of
interest.
• Near the middle of the Data
Analysis window, you can view and
change the setting for background
subtraction.