Dissipation kinetics of chlorantraniliprole in soils of sugarcane ecosystem.
Dissipation kinetics of chlorantraniliprole was studied in sandy loam soils of sugarcane ecosystem by adopting a rapid analytical method. The recovery of chlorantraniliprole was 91.67 % when extracted with ethyl acetate as against only 65.58 % in acetonitrile-based extraction. An additional cleanup step with primary secondary amine did not enhance the recovery significantly over the no-cleanup method. The ethyl acetate-based extraction followed by direct quantification in HPLC (High-performance liquid chromatography) without any cleanup facilitated rapid quantification of chlorantraniliprole residues. The LOQ (limit of quantification) of the method was 0.01 μg/g. The half-life of chlorantraniliprole was 6.50 and 6.81 days for the recommended and double the recommended doses, respectively.
Division of Crop Protection, Sugarcane Breeding Institute, Indian Council of Agricultural Research, Coimbatore, 641007 Tamil Nadu, India. tramasubbu@gmail.com
Thirumalaiandi
T
Ramasubramanian
Mariappan
M
Paramasivam
Kallolathu Purushothaman
KP
Salin
Ramabhadran
R
Jayanthi
D017753:Ecosystem; D004784:Environmental Monitoring; D006207:Half-Life; D007306:Insecticides / Q000032:analysis* / Q000737:chemistry; D007700:Kinetics; D008956:Models, Chemical; D010573:Pesticide Residues / Q000032:analysis* / Q000737:chemistry; D031786:Saccharum; D012987:Soil / Q000737:chemistry*; D012989:Soil Pollutants / Q000032:analysis* / Q000737:chemistry; D062367:ortho-Aminobenzoates / Q000032:analysis* / Q000737:chemistry
D007306:Insecticides; D010573:Pesticide Residues; D012987:Soil; D012989:Soil Pollutants; D062367:ortho-Aminobenzoates; C517733:chlorantranilipole