Abstract
An accurate disposable planar Ag/AgCl reference electrode with an internal electrolyte was successfully fabricated by the screen-printing process. The internal electrolyte layer was also printed by using an electrolyte paste of sodium alginate containing KCl. The potential stability of the electrode was investigated at different operation times and Cl- concentrations in test solutions. Results show that the electrode has long-term potential stability (approximately 60 min), and that its performance does not depend on the Cl- concentration. This electrode can be used to provide various promising applications in sensing techniques based on disposable strips for sensing purposes.
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