title: Recent advances in cleanup of fats by sweep co-distillation. Part 2. Organophosphorus residues.
abstract: This paper describes the isolation of 5 organophosphorus residues in beef fat by a commercial sweep co-distillation unit (Unitrex). The operating conditions specified 223 degrees C and nitrogen flow at 230 mL/min. Recoveries of chlorpyriphos, monodechlorchlorpyriphos, bromophos-ethyl, debromobromophos-ethyl, and ethion ranged from 84 to 99%, with coefficients of variation between 3 and 5%.
mesh_terms: D000818:Animals; D002417:Cattle; D005223:Fats / Q000032:analysis*; D007306:Insecticides / Q000032:analysis; D008461:Meat Products / Q000032:analysis; D009943:Organophosphorus Compounds / Q000032:analysis*; D013050:Spectrometry, Fluorescence / Q000379:methods; D013431:Sulfates / Q000032:analysis
chemical_list: D005223:Fats; D007306:Insecticides; D009943:Organophosphorus Compounds; D013431:Sulfates; C012036:sodium sulfate