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Effect of DABCO (1,4‐diazabicyclo[2,2,2]‐octane) on singlet oxygen monomol (1270 nm) and dimol (634 and 703 nm) emission
Author(s) -
Lengfelder Edmund,
Cadenas Enrique,
Sies Helmut
Publication year - 1983
Publication title -
febs letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.593
H-Index - 257
eISSN - 1873-3468
pISSN - 0014-5793
DOI - 10.1016/0014-5793(83)80318-4
Subject(s) - dabco , octane , singlet oxygen , photochemistry , chemistry , oxygen , singlet state , amine gas treating , organic chemistry , physics , atomic physics , excited state
Monomol (1270 nm) and dimol (634 and 703 nm) emissions of singlet oxygen arising from the H 2 O 2 —OCl − reaction are compared by using a germanium detector and a red‐sensitive photomultiplier, respectively. The detection limits in both cases are compared and the possibility of their application to biological systems in order to detect singlet molecular oxygen is discussed. 1,4‐Diazabicyclo[2,2,2]‐octane (DABCO) enhances both dimol and monomol emission of singlet oxygen from the above reaction; however, the tentative ratio ‘monomol/dimol emission’ is lowered in the presence of the tertiary amine.