The library can also be searched to retrieve spectra that satisfy
various parameters. From the Spectrum Menu in the Data Analysis Module,
select Parametric Retrieval. Practice retrieving spectra using this
feature. For example, you might search for all compounds with a molecular
mass between 108 and 112. Or, you might search for all compounds with
the base peak (the largest peak in the mass spectrum, displayed as
100% Relative Intensity) of m/z 109.
Note: There are multiple libraries on the data system. For this exercise, use nbs75k.l.