title: Collaborative study of a simplified Halphen procedure for the quantitative determination of low levels of cyclopropene fatty acids.
mesh_terms: D003369:Cottonseed Oil; D003521:Cyclopropanes / Q000032:analysis; D005231:Fatty Acids, Unsaturated / Q000032:analysis*; D008722:Methods; D009821:Oils / Q000032:analysis; D003313:Zea mays
chemical_list: D003369:Cottonseed Oil; D003521:Cyclopropanes; D005231:Fatty Acids, Unsaturated; D009821:Oils