STUDY ON THE SENSITIZED PHOTOLYSIS OF PYRETHROIDS .1. KINETIC CHARACTERISTIC OF PHOTOOXIDATION BY SINGLET OXYGEN

Authors
BI G TIAN SZ FENG ZG CHENG J
Citation
G. Bi et al., STUDY ON THE SENSITIZED PHOTOLYSIS OF PYRETHROIDS .1. KINETIC CHARACTERISTIC OF PHOTOOXIDATION BY SINGLET OXYGEN, Chemosphere, 32(7), 1996, pp. 1237-1243
Citations number
16
Categorie Soggetti
Environmental Sciences
Journal title
Chemosphere → ACNP
ISSN journal
00456535
Volume
32
Issue
7
Year of publication
1996
Pages
1237 - 1243
Database
ISI
SICI code
0045-6535(1996)32:7<1237:SOTSPO>2.0.ZU;2-8
Abstract
The kinetic characteristic of photolysis of-cypermethrin sensitized by methylene blue, riboflavin and rose bengal is studied. The relationsh ip between 1/K-expt1 and [A] confirms the mechanism of singlet oxygen photooxidation. Values of CPM in the presence of methylene blue and ri boflavin are 6.49 x 10(-6) and 2.27 x 10(-6) mol(-1). L . s(-1) respec tively. The effective factors such as concentration of sensitizer, atm osphere, probe for O-1(2) and polarity of solvents are discussed for t he photooxidation kinetics of CPM. Copyright (C) 1996 Elsevier Science Ltd