Below is some example data as acquired on High Mass QTof instruments. More data is available on request.
Figure 1 Collision cell pressure (green trace), collision energy (purple trace) and TIC for the analysis of GroEL (800kDa). The spectra show results at medium and high collisional energies.
Figure 2 shows fragmentation patterns at increasing collisional energies for Hepatitis B virus capsids, clearly showing ejection of dimer units (~33kDa) from the original assembly comprising 90 dimer units (~3MDa). Figure taken from Uetrecht et al, High-resolution mass spectrometry of viral assemblies: Molecular composition and stability of dimorphic hepatitis B virus capsids, PNAS July8, 2008 vol.105 no.27 p9216–9220.
Figure 3 shows the optimized singly charged distribution of polystyrene. In order to facilitate ESI cesium iodide was added. The various cluster series are clearly visible.
