Dytrtová JJ, Jakl M, Schröder D, Čadková E, Komárek M. Complexation between the fungicide tebuconazole and copper(II) probed by electrospray ionization mass spectrometry.
RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2011;
25:1037-1042. [PMID:
21452380 DOI:
10.1002/rcm.4957]
[Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2010] [Revised: 01/21/2011] [Accepted: 01/23/2011] [Indexed: 05/30/2023]
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.
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