What are the differences we have observed from ESI-MS, MALDI-TOF-MS and ESI-MS-MS? what is the role of MS-MS?

I am analyzing peptides and proteins, for this there is ESI-MS, MALDI-TO-MS and ESI-MS-MS; what type of difference will we get from this all? please make me clear?

12 December 2014 1,904 0 View