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Complexation between the fungicide tebuconazole and copper( II ) probed by electrospray ionization mass spectrometry
Author(s) -
Dytrtová Jana Jaklová,
Jakl Michal,
Schröder Detlef,
Čadková Eva,
Komárek Michael
Publication year - 2011
Publication title -
rapid communications in mass spectrometry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.528
H-Index - 136
eISSN - 1097-0231
pISSN - 0951-4198
DOI - 10.1002/rcm.4957
Subject(s) - tebuconazole , chemistry , copper , electrospray ionization , mass spectrometry , fungicide , electrospray , ionization , ion , mineralization (soil science) , analytical chemistry (journal) , chromatography , organic chemistry , nitrogen , botany , biology
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. Copyright © 2011 John Wiley & Sons, Ltd.