title: Complexation between the fungicide tebuconazole and copper(II) probed by electrospray ionization mass spectrometry.
abstract: Electrospray ionization mass spectrometry (ESI-MS) is used to probe the complex formation between tebuconazole (1) and copper(II) salts, which both are commonly used fungicides in agriculture. Experiments with model solutions containing 1 and CuCl(2) reveal the initial formation of the copper(II) species [(1)CuCl](+) and [(1)(2)CuCl](+) which undergo reduction to the corresponding copper(I) ions [(1)Cu](+) and [(1)(2)Cu](+) under more drastic ionization conditions in the ESI source. In additional experiments, copper/tebuconazole complexes were also detected in samples made from soil solutions of various origin and different amount of mineralization. The direct sampling of such solutions via ESI-MS is thus potentially useful for understanding of the interactions between copper(II) salts and tebuconazole in environmental samples.
authors: Institute of Organic Chemistry and Biochemistry, Academy of Sciences of the Czech Republic, v.v.i., Flemingovo náměstí 2, 166 10, Prague 6, Czech Republic. dytrtova@uochb.cas.cz
authors: Jana Jaklová
authors: JJ
authors: Dytrtová
authors: Michal
authors: M
authors: Jakl
authors: Detlef
authors: D
authors: Schröder
authors: Eva
authors: E
authors: Čadková
authors: Michael
authors: M
authors: Komárek
mesh_terms: D003300:Copper / Q000737:chemistry*; D005659:Fungicides, Industrial / Q000737:chemistry*; D010084:Oxidation-Reduction; D021241:Spectrometry, Mass, Electrospray Ionization / Q000379:methods*; D014230:Triazoles / Q000737:chemistry*
chemical_list: D005659:Fungicides, Industrial; D014230:Triazoles; C087114:tebuconazole; D003300:Copper