| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1195983 | Journal of the American Society for Mass Spectrometry | 2009 | 8 Pages |
On-line electrochemistry/liquid chromatography/mass spectrometry (EC/LC/MS) was employed to mimic the oxidative metabolism of the fungicide boscalid. High-resolution mass spectrometry and MS/MS experiments were used to identify its electrochemical oxidation products. Furthermore, the introduction of a second electrochemical cell with reductive conditions provided important additional information on the oxidation products. With this equipment, hydroxylation, dehydrogenation, formation of a covalent ammonia adduct, and dimerization were detected after initial one-electron oxidation of boscalid to a radical cation. On-line reaction with glutathione yielded different isomeric covalent glutathione adducts. The results of the electrochemical oxidation are in good accordance with previously reported in vivo experiments, showing that EC/LC/MS is a useful tool for studying biotransformation reactions of various groups of xenobiotics.
Graphical AbstractThe metabolism of the pesticide boscalid was simulated in an on-line electrochemistry/liquid chromatography/mass spectrometry coupling. Electrochemical metabolism reactions include hydroxylation, dehydrogenation, and glutathione adduct formation.Figure optionsDownload full-size imageDownload high-quality image (49 K)Download as PowerPoint slide
