The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
The base peak in a mass spectrum (within the user-selected mass range) is the ion with the highest measured abundance. The relative abundance of the base peak ion is assigned a value of 100, and the abundances of all the other ions plotted in that mass spectrum are normalized to that value. The y-axis in a mass spectrum is therefore given in terms of relative abundance.