The establishment of EVISA is funded by the EU through
the Fifth Framework Programme (G7RT- CT- 2002- 05112).
Supporters of EVISA includes:
A chemical substance that is added to the sample in an electrothermal vaporizer to change the volatility of the analyte or matrix. Typically the modifier is added before the drying and ashing stages of the heating program to separate the vaporization of the analyte from the potential interferences of the matrix components.