ascorbic-acid and 9-10-anthraquinone

ascorbic-acid has been researched along with 9-10-anthraquinone* in 1 studies

Other Studies

1 other study(ies) available for ascorbic-acid and 9-10-anthraquinone

Article	Year
Photoinduced oxygen uptake for 9,10-anthraquinone in air-saturated aqueous acetonitrile in the presence of formate, alcohols, ascorbic acid or amines. Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2006, Volume: 5, Issue:11 The photolysis of 9,10-anthraquinone (AQ), 2-methyl- and 2,3-dimethyl-AQ was studied in air-saturated acetonitrile-water in the presence of various donors: formate, ascorbic acid, alcohols, e.g. 2-propanol or methanol, and amines, e.g. ethylenediaminetetraacetate (EDTA). The photoreaction is initiated by H-atom or electron transfer from the donor to the AQ triplet state. The conversion of oxygen into hydrogen peroxide occurs via the superoxide radical and its conjugate acid. The quantum yield of oxygen uptake (Phi(-O2)) increases with increasing donor concentration. Phi(-O2) = 0.3-0.6 in the presence of 1 M 2-propanol and 3-10 mM ascorbic acid or EDTA. The properties of the quinone and donor radicals involved and the pH and concentration dependences of Phi(-O2) are described. Topics: Acetonitriles; Air; Alcohols; Amines; Anthraquinones; Ascorbic Acid; Formates; Photochemistry; Water	2006

Article

Year

Photoinduced oxygen uptake for 9,10-anthraquinone in air-saturated aqueous acetonitrile in the presence of formate, alcohols, ascorbic acid or amines.

Photochemical & photobiological sciences : Official journal of the European Photochemistry Association and the European Society for Photobiology, 2006, Volume: 5, Issue:11

The photolysis of 9,10-anthraquinone (AQ), 2-methyl- and 2,3-dimethyl-AQ was studied in air-saturated acetonitrile-water in the presence of various donors: formate, ascorbic acid, alcohols, e.g. 2-propanol or methanol, and amines, e.g. ethylenediaminetetraacetate (EDTA). The photoreaction is initiated by H-atom or electron transfer from the donor to the AQ triplet state. The conversion of oxygen into hydrogen peroxide occurs via the superoxide radical and its conjugate acid. The quantum yield of oxygen uptake (Phi(-O2)) increases with increasing donor concentration. Phi(-O2) = 0.3-0.6 in the presence of 1 M 2-propanol and 3-10 mM ascorbic acid or EDTA. The properties of the quinone and donor radicals involved and the pH and concentration dependences of Phi(-O2) are described.

Topics: Acetonitriles; Air; Alcohols; Amines; Anthraquinones; Ascorbic Acid; Formates; Photochemistry; Water

2006