Peak Purity

This feature will calculate the chromatogram peak (or region) purity associated to the most abundant mass peaks which are displayed under the selected peak:

By default the number of curves are 3 and the tolerance is 0.5 Da, but it can be customized via 'Peak Purity Options'.

There are three different modes:

Peaks: will use the single chromatogram peak.

Cluster: will use isotope clusters instead of single peaks (with the option to select the minimum intensity ratio and the maximum distance):

Predefined: will use the mass values or mass ranges provided by the user: