Degradation of fentrazamide herbicide in soil under aerobic condition.
Dissipation of fentrazamide in soil under aerobic conditions was studied. Fentrazamide was extracted with 0.1 N HCl: acetone (1:1 v/v) followed by partition and cleanup. Separation was done on ODS-II column with mobile phase acetonitrile: water (70:30 v/v). Recovery varied from 74.51 % to 90.10 % percent in soil. Dissipation followed first order kinetics with monophasic pattern. Half life in soil was 9.02 days. Calibration curves were linear over the range of 0.05-1.00 μg mL(-1) and RSD was 1.82 %. LOD and LOQ were 0.002 and 0.005 μg g(-1) for soil. No residues in soil and crop were observed at harvest.
Department of Chemistry (Division of Agricultural Chemicals), College of Basic Sciences and Humanities, G. B. Pant University of Agriculture & Technology, U. S. Nagar, Pantnagar, 263 145, Uttarakhand, India. shishir_tandon@lycos.com
Shishir
S
Tandon
Atul
A
Pujari
N K
NK
Sand
D001673:Biodegradation, Environmental; D002851:Chromatography, High Pressure Liquid; D006207:Half-Life; D006540:Herbicides / Q000032:analysis / Q000378:metabolism*; D007194:India; D007700:Kinetics; D010573:Pesticide Residues / Q000032:analysis; D012987:Soil / Q000032:analysis* / Q000737:chemistry; D012989:Soil Pollutants / Q000032:analysis / Q000378:metabolism*; D013777:Tetrazoles / Q000032:analysis / Q000378:metabolism*
D006540:Herbicides; D010573:Pesticide Residues; D012987:Soil; D012989:Soil Pollutants; D013777:Tetrazoles; C503625:fentrazamide