New chemical evidence for the ability to generate radical molecular ions of polyenes from ESI and HR-MALDI mass spectrometry.
New chemical evidence for the ability to generate radical molecular ions of polyenes from ESI and HR-MALDI mass spectrometry.
- Analyst, 129(12), p.1223-1226, 2004 .
We report here new chemical evidence for the generation of radical molecular ions of compounds with a conjugated ?-system (polyene)in ESI and HR-MALDI mass spectrometry. The oxidation potential of the neutral polyenes was calculated by cyclic-voltammetry and the results compared with those previously published for other complex conjugated compounds that have also been shown to form M?+ in ESI-MS. This study clearly demonstrates the correlation between the oxidation potential and the formation of the M?+ for the polyenes studied.
CHEMICAL
ABILITY
MOLECULAR
POLYENES
ESI HR-MALDI
MASS SPECTROMETRY
We report here new chemical evidence for the generation of radical molecular ions of compounds with a conjugated ?-system (polyene)in ESI and HR-MALDI mass spectrometry. The oxidation potential of the neutral polyenes was calculated by cyclic-voltammetry and the results compared with those previously published for other complex conjugated compounds that have also been shown to form M?+ in ESI-MS. This study clearly demonstrates the correlation between the oxidation potential and the formation of the M?+ for the polyenes studied.
CHEMICAL
ABILITY
MOLECULAR
POLYENES
ESI HR-MALDI
MASS SPECTROMETRY