Synthetic Polymers

AP/MALDI has been shown to be effective at characterizing synthetic polymers, including polystyrene and polypropylene glycol (PPG). 

Typical Spectra:

AP/MALDI-MS of polystyrene, M.W. 2.3 kDa

AP/MALDI-MS/MS of polystyrene, M.W. 2.3 kDa

AP-DIOS-MS of polyethylene glycol (PEG)

Relevant References:

Atmospheric pressure matrix-assisted laser desorption/ionisation ion trap mass spectrometry of synthetic polymers: a comparison with vacuum matrix-assisted laser desorption/ionisation time-of-flight mass spectrometry
CS Creaser,  JC Reynolds, AJ Hoteling, WF Nichols, KG Owens
Eur. J. Mass Spectrom. 2003; 9: 33-44.