Table 1.
Comparison of the performance of some solid-state reference electrodes for pH sensing.
| Electrode Type | Fabrication Techenique | Test Solution | Test Mode | Stability | Literature |
|---|---|---|---|---|---|
| Ag/AgCl/GO | Sputtering, chemical chlorination, and drop casting | 3 M KCl | Intermittent (2 or 3 days’ interval) | 26 days | 2015 [52] |
| LBL-PE/npPt | Electrodeposition, photo polymerization | 0.1 M PBS | Continuous | 50 h | 2011 [53] |
| Ag/AgCl/KCl-glass | Screen printing | Deionized water | Continuous | 4 h | 2014 [54] |
| Ag/AgCl/KCl-agar/epoxy | Drop casting | Deionized water | Continuous | 56 h | This work |