INVESTIGADORES
ARBELOA Ernesto Maximiliano
artículos
Título:
Singlet Oxygen Production by a Crude Oil from the San Jorge Gulf Basin, Argentina
Autor/es:
MARISA LÓPEZ, ROSMARI; MANGANI, ADRIANA DEL LUJÁN; ARBELOA, ERNESTO MAXIMILIANO; LUIZ, MARTA MABEL; GUTIÉRREZ, MARÍA ISELA
Revista:
PHOTOCHEMISTRY AND PHOTOBIOLOGY
Editorial:
WILEY-BLACKWELL PUBLISHING, INC
Referencias:
Año: 2018
ISSN:
0031-8655
Resumen:
The quantum yields for singlet oxygen production by diluted solutions of an Argentine crude oil and its SARA (saturates, aromatics, resins and asphaltenes) fractions were obtained bydirect detection of the characteristic phosphorescence following monochromatic excitation at 355 nm. The most efficient sensitizers of singlet oxygen in organic media are crude oil, maltenes and aromatics fractions (values of singlet oxygen quantum yield are around 0.7), and resins (values around 0.1) are the poorest. Also, the quenching of singlet oxygen by the crude oil and its fractions was investigated; the asphaltenes and the petroleum are relatively efficient quenchers of singlet oxygen.
