title: Derivatization of ethylenethiourea with m-trifluoromethylbenzyl chloride for analysis by electron-capture gas chromatography.
mesh_terms: D001593:Benzyl Compounds; D002849:Chromatography, Gas; D005031:Ethylenethiourea / Q000032:analysis*; D007093:Imidazoles / Q000032:analysis*; D007202:Indicators and Reagents; D010573:Pesticide Residues / Q000032:analysis*
chemical_list: D001593:Benzyl Compounds; D007093:Imidazoles; D007202:Indicators and Reagents; D010573:Pesticide Residues; D005031:Ethylenethiourea