Journal
ELECTROCHEMISTRY COMMUNICATIONS
Volume 9, Issue 8, Pages 2067-2074Publisher
ELSEVIER SCIENCE INC
DOI: 10.1016/j.elecom.2007.06.007
Keywords
copper; electrospray; mass spectrometry; microchip; oxidation; sacrificial electrode
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Taking advantage of the electrochemical aspects of electrospray ionization (ESI) sources in positive ionization mode mass spectrometry (MS), aqueous copper complexes are electrogenerated using sacrificial copper electrodes. When using 8-hydroxyquinoline or bathocuproine, two chelating agents for Cu2+ and Cu+ ions, respectively, the electrodissolution of copper leads to the formation of the respective complexes that are then analyzed by MS. This electrochemical generation of copper(l) complexes offers a direct route to synthesize Cu+ complexes in aqueous solutions. (c) 2007 Elsevier B.V. All rights reserved.
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