title: The evaluation of carbon nanotubes as a sorbent for dicamba herbicide.
abstract: The potential of carbon nanotubes (CNTs) as a novel sorbent for extraction of dicamba, a highly polar acidic herbicide, from aqueous samples was evaluated. The sorption capacity of CNTs increases remarkably with decreasing sample pH. The solution of ACN and ammonia (80:20 v/v) was found to be the most effective as the eluent for desorption from a 0.2 g CNT cartridge. The method was tested for river water samples with the LOD of 2 microg/L (for 100 mL sample) and compared with C18 bonded silica.
authors.affiliation: Department of Chemistry, Warsaw University, Warsaw, Poland.
authors.forename: Magdalena
authors.initials: M
authors.lastname: Biesaga
authors.forename: Krystyna
authors.initials: K
authors.lastname: Pyrzynska
mesh_terms: D000097:Acetonitriles; D000327:Adsorption; D000641:Ammonia; D002851:Chromatography, High Pressure Liquid / Q000379:methods; D003996:Dicamba / Q000737:chemistry / Q000302:isolation & purification*; D005618:Fresh Water / Q000032:analysis; D006540:Herbicides / Q000737:chemistry / Q000302:isolation & purification*; D006863:Hydrogen-Ion Concentration; D037742:Nanotubes, Carbon; D012822:Silicon Dioxide; D012996:Solutions; D014874:Water Pollutants, Chemical / Q000032:analysis
chemical_list: D000097:Acetonitriles; D006540:Herbicides; D037742:Nanotubes, Carbon; D012996:Solutions; D014874:Water Pollutants, Chemical; D012822:Silicon Dioxide; D000641:Ammonia; D003996:Dicamba; C032159:acetonitrile