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The establishment of EVISA is funded by the EU through the Fifth Framework Programme (G7RT- CT- 2002- 05112).

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post source decay (PSD)

With MALDI, this term designates the phenomenon occurring when the excessive internal energy of ions themselves or collisions with free gas cause dissociation immediately after the ions generated by laser illumination exit the high speed field region. Since the ions decay after leaving the ion source but before reaching the collector, this term corresponds to metastable dissociation.


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