New applications of multiply charged ionic probes as cleavable cross-linker and polymerization reagent
摘要:
We have designed new cleavable cross-linkers for biomolecules containing the 2,6-bis(oxazolinyl)pyridine (pybox) lanthanum complex. These species can effectively donate multiple charges to afford cross-linker ions for target biomolecules. The cross-linkers are cleaved easily by adding water. Moreover, we were able to detect chain structures of target molecules, including biomolecules and carbon clusters, such as fullerene C-60, by the addition of some MS ionic probes. Cold-spray ionization mass spectrometry demonstrated the applications of multiply charged ionic probes as cleavable cross-linkers and polymerization reagents. (C) 2012 Elsevier Ltd. All rights reserved.
Ionic probe attachment ionization mass spectrometry
摘要:
A new ionization method that uses metal-complex-based ionization probes containing the 2,6-bis(oxazolinyl)pyridine (pybox) ligand is presented. This method was proven to effectively ionize large complex molecules, including biomolecules. The preparation of the charged probes and their application to the ionization of biomolecules using cold-spray ionization mass spectrometry are shown. (C) 2009 Elsevier Ltd. All rights reserved.