Phototransformation of alphacypermethrin as thin film on glass and soil surface.
Photodegradation of alphacypermethrin ((RS)-alpha cyano-3-phenoxy benzyl (1RS) cis-3-(2,2,dichlorovinyl)-2,2-dimethyl cyclopropane carboxylate) was studied as a thin film on glass surface and on black and red soil surfaces. A number of photoproducts from glass surfaces have been isolated, characterized and identified by gas chromatography-mass spectroscopy (GC-MS). However, only two of them viz. 3-phenoxy benzyl alcohol and [2,2-dichlorovinyl-3(2,2,dimethyl) cyclopropane carboxylate] could be identified from both the soil. Rate of photodegradation on glass and soil surface under UV and sunlight followed first order kinetics with significant correlation coefficients. The rate of photodegradation was greater on black than on red soil.
Raikwar
Mukesh Kumar
MK
Plant Animal Relationship Division, Indian Grassland and Fodder Research Institute, Jhansi, UP, India.
Nag
Subir Kumar
SK
D008401:Gas Chromatography-Mass Spectrometry / Q000379:methods; D005898:Glass / Q000737:chemistry*; D007306:Insecticides / Q000737:chemistry*; D007700:Kinetics; D010782:Photolysis; D011722:Pyrethrins / Q000737:chemistry*; D012987:Soil / Q000032:analysis*; D013472:Sunlight
D007306:Insecticides; D011722:Pyrethrins; D012987:Soil; C017160:cypermethrin