Excited-state proton transfer in laser mass spectrometry
作者： M. Paul. Chiarelli , Andrew G. Sharkey , David M. Hercules
DOI: 10.1021/AC00051A020
关键词:
摘要: Molecular ion formation was studied for several bifunctional carboxylic acids to elucidate the role of excited-state proton tranfer (EPST) in UV laser mass spectrometry (LMS). Formation (M-2H+3Li) + spectra both 1- and 4-fluorenecarboxylic contitutes direct evidence ESPT. aromatic aliphatic hydroxy reveals that extent by is controlled relative abundance and/or lifetime zwitterionic tautomer int eh excited singlet state
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