Dissipation of fipronil in water under laboratory conditions.
Fipronil belongs to phenyl-pyrazole class of chemical compounds. Its dissipation in water has been studied for 90 days under laboratory conditions at two dose 0.028 (T1) and 0.056 (T2) μg mL−1. Residues were extracted with 15% dichloromethane in hexane by liquid-liquid partitioning and were estimated by GC-ECD system equipped with capillary column. Fipronil was found to persist up to 30 days after application and 100% dissipation was observed after 60 days of application. Dissipation followed a biphasic first order kinetics with half-life values of 19.13 and 20.63 days in water at (T1) and (T2) treatments, respectively.
Chopra
Indu
I
Department of Chemistry & Physics, CCS Haryana Agricultural University, Hisar 125 004, India.
Kumari
Beena
B
D002849:Chromatography, Gas; D006207:Half-Life; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry; D007700:Kinetics; D007753:Laboratories; D011720:Pyrazoles / Q000032:analysis* / Q000737:chemistry; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
D007306:Insecticides; D011720:Pyrazoles; D014874:Water Pollutants, Chemical; C082360:fipronil