title: Facile and rapid determination of contamination in sulphur pesticide formulations by liquid chromatography-tandem mass spectrometry.
abstract: Up to 7% of pesticide products in the European market are illegal, counterfeit or of poor quality. As a result, regulatory authorities are required to determine a wide variety of impurities in many different pesticide formulations. A simple, rapid and exceptionally reliable LC-MS-MS method for the determination of carbendazim residual quantities in sulphur formulations, used in organic agriculture, has been developed and validated. Linearity of response was established (R (2) = 0.9997) over a wide range of concentrations (0.01-2 microg/mL). Recovery ranged from 94% to 101%. LOD and LOQ were 0.003 microg/mL and 0.005 microg/mL, respectively, and lack of interference was confirmed.
authors.affiliation: Laboratory of Chemical Control of Pesticides, Benaki Phytopathological Institute, Kifissia, Greece. G.Balayiannis@bpi.gr
authors.forename: George Panos
authors.initials: GP
authors.lastname: Balayiannis
authors.forename: Helen
authors.initials: H
authors.lastname: Anagnostopoulos
authors.forename: Irene
authors.initials: I
authors.lastname: Kellidou
mesh_terms: D002853:Chromatography, Liquid / Q000379:methods*; D010575:Pesticides / Q000737:chemistry*; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D013455:Sulfur / Q000737:chemistry*; D053719:Tandem Mass Spectrometry / Q000379:methods*
chemical_list: D010575:Pesticides; D013455:Sulfur