| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1195810 | Journal of the American Society for Mass Spectrometry | 2006 | 6 Pages |
Abstract
Electrospray ionization (ESI) mass spectrometry was utilized to investigate noncovalent complexes between β-cyclodextrin (β-CD) and five novel polyamide acids containing N-methylpyrrole and N-methylimidazole. The 1:1 binding mode was specified by examining the binding stoichiometry from ESI mass spectra. It found that polyamide acids with β-CD have binding affinities in the order: ImImImβCOOH > ImPyImβCOOH > ImPyPyβCOOH > PyPyPyβCOOH > NO2PyPyPyβCOOH. The method gives, simultaneously, the binding constants between β-CD and polyamide acids based on a novel linear equation.
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Huihui Li, Jiang Zhou, Feili Tang, Gu Yuan,