title: Rapid on-line precolumn high-performance liquid chromatographic method for the determination of benomyl, carbendazim and aldicarb species in drinking water.
abstract: A reversed-phase high-performance liquid chromatographic (HPLC) method has been developed for the determination of trace concentrations of benomyl, carbendazim, aldicarb, aldicarb sulphoxide and aldicarb sulphone in drinking water. A 10-ml sample of water is passed through a 3-cm precolumn, packed with 5-microns C8 sorbent, at a flow-rate of 5 ml/min. The HPLC system is then switched to an acetonitrile-water gradient elution program. The preconcentrated analytes are eluted from, and separated by, the 3-cm C8 precolumn and determined by UV absorption. The total analytical time is 25 min. The lowest detectable concentrations are in the range of 2.5 x 10(-9)-11.0 x 10(-9) g/ml for the five analytes investigated with 10 ml of sample.
authors.affiliation: Department of Chemistry, Brock University, St. Catharines, Ontario, Canada.
authors.forename: C H
authors.initials: CH
authors.lastname: Marvin
authors.forename: I D
authors.initials: ID
authors.lastname: Brindle
authors.forename: C D
authors.initials: CD
authors.lastname: Hall
authors.forename: M
authors.initials: M
authors.lastname: Chiba
mesh_terms: D000448:Aldicarb / Q000031:analogs & derivatives / Q000032:analysis*; D001542:Benomyl / Q000032:analysis*; D001562:Benzimidazoles / Q000032:analysis*; D002219:Carbamates; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005659:Fungicides, Industrial / Q000032:analysis*; D014867:Water / Q000737:chemistry*
chemical_list: D001562:Benzimidazoles; D002219:Carbamates; D005659:Fungicides, Industrial; D014867:Water; C030579:aldicarb sulfoxide; D000448:Aldicarb; C006698:carbendazim; C030580:aldicarb sulfone; D001542:Benomyl