title: Simultaneous determination of sixteen phenylurea herbicides in water by high performance liquid chromatography and solid phase extraction.
abstract: A high performance liquid chromatography (HPLC) procedure for simultaneous determination of sixteen phenylurea herbicides in water is described. A Lichrospher 100 RP-18e column and spectrophotometric detection at 240 nm were used. Adequate retention was achieved with a mobile phase of acetonitrile/water solution with gradient elution. The HPLC analysis time was less than 20 min. The herbicides were isolated from water samples by using a single solid phase extraction procedure with C18 solid-phase columns. An enrichment factor of 1,000 was achieved. Recoveries were in the range between 87.8% and 103.7%. The detection limits of the whole procedure achieved were less than one-tenth of the maximum limit permitted by the European Community standard for drinking water.
authors.affiliation: Department of Applied Chemistry, Nanjing University of Technology, Nanjing 210009, China. njfangli@jlonline.com
authors.forename: F
authors.initials: F
authors.lastname: Li
authors.forename: D
authors.initials: D
authors.lastname: Martens
authors.forename: A
authors.initials: A
authors.lastname: Kettrup
mesh_terms: D002849:Chromatography, Gas / Q000379:methods; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D006540:Herbicides / Q000032:analysis*; D010671:Phenylurea Compounds / Q000032:analysis*; D012997:Solvents; D014877:Water Pollution, Chemical / Q000032:analysis*; D014881:Water Supply / Q000032:analysis
chemical_list: D006540:Herbicides; D010671:Phenylurea Compounds; D012997:Solvents