title: Effect of cupric ions on the analysis of ethylenebis(dithiocarbamate) residues in tomato juice.
abstract: Cupric ions interfered with the carbon disulfide evolution assay method for dithiocarbamate residues in tomato juice and in aqueous solution. Amounts of residue determined were reduced when CuSO4 and a formulation of copper fungicide (Copper-Count-N) were present in the solutions analyzed.
mesh_terms: D001628:Beverages / Q000032:analysis*; D003300:Copper; D005028:Ethylenebis(dithiocarbamates) / Q000032:analysis*; D005506:Food Contamination / Q000032:analysis; D010573:Pesticide Residues / Q000032:analysis*; D013859:Thiocarbamates / Q000032:analysis*; D014675:Vegetables
chemical_list: D005028:Ethylenebis(dithiocarbamates); D010573:Pesticide Residues; D013859:Thiocarbamates; D003300:Copper