title: A simple spectrophotometric method for the determination of carbofuran residues.
abstract: A method has been developed for carbofuran residues, based on coupling carbofuran (2,3-dihydro-2,2-dimethyl-7-benzofuranyl methyl carbamate) with diazotized aniline to form a yellow compound with an absorption maximum at 460 nm. The relationship between absorbance and concentration is linear for 1-10 mug carbofuran/5 ml. The method is sensitive and can be applied to the determination of levels as low as 0.025 ppm carbofuran in a 40 g crop or soil sample.
mesh_terms: D002235:Carbofuran / Q000032:analysis*; D003124:Colorimetry; D007306:Insecticides / Q000032:analysis*; D008832:Microchemistry; D010573:Pesticide Residues / Q000032:analysis*; D012989:Soil Pollutants / Q000032:analysis; D013053:Spectrophotometry
chemical_list: D007306:Insecticides; D010573:Pesticide Residues; D012989:Soil Pollutants; D002235:Carbofuran