New chemical evidence for the ability to generate radical molecular ions of polyenes from ESI and HR-MALDI mass spectrometry.
Analyst
; 129(12): 1223-6, 2004 Dec.
Article
em En
| MEDLINE
| ID: mdl-15565222
ABSTRACT
We report here new chemical evidence for the generation of radical molecular ions of compounds with a conjugated pi-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.
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01-internacional
Base de dados:
MEDLINE
Assunto principal:
Retinoides
/
Carotenoides
Limite:
Animals
Idioma:
En
Revista:
Analyst
Ano de publicação:
2004
Tipo de documento:
Article
País de afiliação:
Brasil