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...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.展开更多
文摘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.
