In this process {TAIL ~ the peptide} of {HEAD ~ interest} first binds to one of the metals present in the ESI capillary and then under CDSECSI conditions the metal is ionized and the metal peptide complex becomes an odd electron cation 
In this process { TAIL ~ the peptide } of { HEAD ~ interest } first binds to one of the metals present in the ESI capillary and then under CDSECSI conditions the metal is ionized and the metal peptide complex becomes an odd electron cation
OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH