Citation: Zeper ABLIZ, Mitsuo TAKAYAMA, Yun XIANG, Li Jun LI. MS/MS Study of Deoxydinucleotides Bound with Alkali-metal Ions Using ESI-MS[J]. Chinese Chemical Letters, ;2003, 14(5): 499-502. shu

MS/MS Study of Deoxydinucleotides Bound with Alkali-metal Ions Using ESI-MS

1.
Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050;
2.
Graduate School of Sciences, Yokohama City University, Yokohama 236, Japan

Received Date: 13 June 2002

Positive ion ESI-MS has been used to examine the fragmentation pathways of the complex ions of deoxydinucleotides with H⁺, Na⁺, K⁺ by LCQ instrument.It had been found that the dissociation varied markedly due to the differences of the base sequence.The alkali-metal ion binding site and the characterization of dissociation were directed by the size of metal ion, the sequence of base and the steric hindrance.
- MS/MS,
- deoxydinucleotides,
- complex ions
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