摘要
Electrospray ionization(ESI) and tandem mass spectrometry have been used to investigate the gas phase interactions of five metal ions and seven dipeptides. For silver ion, two complexes( + and +) were obtained as well as the one complex ( +) for transition metal ions. Upon collision activation, there is an obvious difference in MS/MS data between metal ion complex and the protonated molecule. The fragment pathway of each complex is related to the structures of dipeptide and the nature of metal ion which suggest that there are several interaction between the metal ions and dipeptides in gas phase.
Electrospray ionization(ESI) and tandem mass spectrometry have been used to investigate the gas phase interactions of five metal ions and seven dipeptides. For silver ion, two complexes( + and +) were obtained as well as the one complex ( +) for transition metal ions. Upon collision activation, there is an obvious difference in MS/MS data between metal ion complex and the protonated molecule. The fragment pathway of each complex is related to the structures of dipeptide and the nature of metal ion which suggest that there are several interaction between the metal ions and dipeptides in gas phase.
出处
《高等学校化学学报》
SCIE
EI
CAS
CSCD
北大核心
2001年第7期1111-1113,共3页
Chemical Journal of Chinese Universities
