Use of monovalent copper for sensitive detection of methyl derivatives of xanthine
| Authors | |
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| Year of publication | 2014 |
| Type | Article in Proceedings |
| Conference | XXXIV. Moderní Elektrochemické Metody |
| MU Faculty or unit | |
| Citation | |
| Field | Physical chemistry and theoretical chemistry |
| Keywords | Keywords Oxidation of methylxanthines; Copper complexes; Pencil graphite electrode (PeGE); Biosensing; Linear sweep voltammetry; Elimination voltammetric procedure (EVP). |
| Description | This work is concerned with the electroanalysis of xanthine (Xan) and its methylated derivatives (1-, 3-, 7-, and 9-mXan) on a pencil graphite electrode in the presence of copper ions. The main idea of using copper consists in the in situ formation of the complex Cu(I)-mXan on the electrode surface and improvement of oxidative signals of the corresponding mXan during the detection. Linear sweep voltammetry (LSV) in connection with adsorption stripping techniques was used for the determination of mXan. To enhance the oxidation signals the elimination voltammetric procedure (EVP) was applied. |
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