Photodegradation of Carbaryl in Acetonitrile Solution

The photochemical decomposition, induced by UV radiation, of the carbamate pesticide (Carbaryl) in acetonitrile has been examined by means of gas chromatography-Mass spectrometry (GC-MS). The result of continuous irradiation was almost total degradation of the pesticide examined. In order to investi...

Full description

Saved in:
Bibliographic Details
Published in:Spectroscopy letters 2007-07, Vol.40 (4), p.573-582
Main Authors: Yousef, Yaser A., El-Khatib, Fayez
Format: Article
Language:English
Subjects:
Carbaryl
fluorescence
GC-MS
photodegradation
single photon counting
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The photochemical decomposition, induced by UV radiation, of the carbamate pesticide (Carbaryl) in acetonitrile has been examined by means of gas chromatography-Mass spectrometry (GC-MS). The result of continuous irradiation was almost total degradation of the pesticide examined. In order to investigate the nature of the reaction products, a spectroscopic study (UV-Vis, steady-state fluorescence, and fluorescence lifetime) of the products was performed. Phthalic anhydride and traces of 1,4-naphtalenedione as an intermediate were detected as reaction products. The presence of a trace amount of 1-naphthol as one of the photoproducts was confirmed by fluorescence lifetime measurements.
ISSN:0038-7010
1532-2289
DOI:10.1080/00387010701300610