The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
nominal ion mass
The nominal ion mass is the mass of an ion for a given empirical formula calculated using the integer mass of the most abundant isotope of each element (for example, C is 12 Da, H is 1 Da, and O is 16 Da).