Spectrophotometric determination of ferbam (iron(III) dimethyldithiocarbamate) in commercial sample and wheat grains using 4,7-diphenyl-1,10-phenanthroline after extraction into mesityl oxide.
A procedure has been developed for the determination of iron(III) dimethyldithiocarbamate by converting it into iron(II)-bathophenanthroline complex, which is then extracted into mesityl oxide in the presence of potassium perchlorate. The absorbance is then measured at 534 nm against a reagent blank. Beer's law is obeyed over the concentration range 0.5-20 microg ml(-1) in the final solution. The method is sensitive, highly selective and can be used for the determination of ferbam in a commercial sample, and in mixtures with various dithiocarbamates (ziram, zineb, maneb, etc.) and in wheat grains.
Department of Chemistry, DAV, College, Jalandhar, Punjab, India.
A K
AK
Malik
D004125:Dimethyldithiocarbamate / Q000032:analysis*; D005659:Fungicides, Industrial / Q000032:analysis*; D006588:Hexanones / Q000737:chemistry; D010618:Phenanthrolines / Q000737:chemistry; D012680:Sensitivity and Specificity; D014908:Triticum / Q000737:chemistry*
D004125:Dimethyldithiocarbamate; D005659:Fungicides, Industrial; D006588:Hexanones; D010618:Phenanthrolines; C008374:mesityl oxide; C011251:ferbam