Abstract
The covering of conventional solid electrode with a film using an ink containing a conductive powder and a polymer enables to broaden the potential window of the original solid electrode. A solid silver amalgam electrode covered with such a film exhibits a potential window from -600 mV to +1400 mV vs. SCE reference electrode. The renewal of the film is fast and simple: the electrode can be simply wiped with a filter paper to remove the old film and immersed into an ink solution or 1-2 μL of this ink solution can be applied to the surface of the electrode with a micro dispenser to form a new film. Therefore, just the inexpensive film at the electrode surface is disposable and there is no need to dispose the whole, more expensive electrode. Moreover, when a suitable electrochemical pretreatment of the film electrode is applied, the same film can be used for reproducible measurements for several days.
Original language | English |
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Pages (from-to) | 1126-1130 |
Number of pages | 5 |
Journal | Electroanalysis |
Volume | 18 |
Issue number | 11 |
DOIs | |
Publication status | Published - 1 Jun 2006 |
Externally published | Yes |
Keywords
- Disposable sensor
- Ink film
- Solid electrodes
- Voltammetry
ASJC Scopus subject areas
- Analytical Chemistry
- Electrochemistry