new photoproduct of the drug furosemide in aqueous media

The solar phototransformation of furosemide has been investigated in aqueous media. Irradiation of the drug in distilled water, in water and humic acids or nitrate ions, and in sewage sludge water affords a new dehalogenated dimer. The formation of the dimer has been explained by the formation of a...

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Bibliographic Details
Published in:Environmental chemistry letters 2004-12, Vol.2 (3), p.155-158
Main Authors: Della Greca, Marina, Iesce, Maria Rosaria, Previtera, Lucio, Rubino, Maria, Temussi, Fabio
Format: Article
Language:English
Subjects:
Aqueous solutions
furosemide
humic acids
Ions
irradiation
nitrates
sewage sludge
Sludge
Water
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Summary:The solar phototransformation of furosemide has been investigated in aqueous media. Irradiation of the drug in distilled water, in water and humic acids or nitrate ions, and in sewage sludge water affords a new dehalogenated dimer. The formation of the dimer has been explained by the formation of a cation radical intermediate. The low-measured environmental concentration of furosemide with respect to predicted environmental concentration in the Po and Lambro Rivers could be justified by its phototransformation.
ISSN:1610-3653
1610-3661
DOI:10.1007/s10311-004-0080-9