title: Supercritical fluid extraction coupled with supercritical fluid chromatography for the separation of sulfonylurea herbicides and their metabolites from complex matrices.
abstract: Supercritical fluid chromatography and supercritical fluid extraction have been coupled to provide on-line evaluation of a dynamic extraction procedure. The simultaneous removal and analysis of representative sulfonylureas, their precursors and metabolites from complex matrices was accomplished with this configuration. The matrices examined include soil, plant materials and a cell culture medium. The simplicity and current applicability of this design to the agricultural products industry is demonstrated.
authors.affiliation: Agricultural Products Department, E. I. du Pont de Nemours & Co., Inc., Wilmington, DE 19898.
authors.forename: M E
authors.initials: ME
authors.lastname: McNally
authors.forename: J R
authors.initials: JR
authors.lastname: Wheeler
mesh_terms: D002853:Chromatography, Liquid; D005433:Flour / Q000032:analysis; D006540:Herbicides / Q000302:isolation & purification*; D007202:Indicators and Reagents; D008970:Molecular Weight; D012987:Soil / Q000032:analysis; D013056:Spectrophotometry, Ultraviolet; D013453:Sulfonylurea Compounds; D014908:Triticum / Q000032:analysis
chemical_list: D006540:Herbicides; D007202:Indicators and Reagents; D012987:Soil; D013453:Sulfonylurea Compounds