AI Article Synopsis
- The study analyzed solutions of diclofenac and various copper salts using electrospray ionization mass spectrometry (ESI-MS).
- Diclofenac forms a molecular ion (M+*) at m/z 295 due to cation-pi interactions in diclofenac-Cu(II) complexes.
- The ion formation is significantly influenced by the solvent composition (methanol vs. water/methanol) and the type of counter ion used.
Article Abstract
Solutions containing diclofenac (M) and a copper salt [CuCl2, Cu(ClO4)2, Cu(NO3)2, CuSO4) were analysed by electrospray ionisation mass spectrometry (ESI-MS). Because of the cation-pi interactions in diclofenac-Cu(II) complexes, the diclofenac molecular ion M+* at m/z 295 was formed. It was found that the solvent composition (methanol versus water/methanol) and counter ion strongly affect the M+* ion formation. Formation pathways of ion M+* are discussed.
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| http://dx.doi.org/10.1255/ejms.1166 | DOI Listing |
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