Additional analyses by MS/MS can either be direct, e.g., MALDI-TOF/TOF analysis or downstream nanoLC-ESI-MS/MS analysis of gel spot eluates.
Dodatna MS/MS analiza može da bude bilo direktna, e.g., MALDI-TOF/TOF analiza ili nizvodna nanoLC-ESI-MS/MS analiza eluata segmentata gela.