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