Reference Electrodes for electrochemical measurements in high-temperature high-pressure aqueous environments-Review of potential corrections for 'external' reference systems

In this paper we will present a brief state-of-the-art, and we will demonstrate the possibility of transforming the huge amount of correction data for external reference electrode systems into one simple analytical expression, at least for neutral and alkaline solutions. For acidic solutions, there is a small deviation. Precisions of the order of ±5 to 15 mV (depending on the temperature) can generally be obtained, which should be sufficient for applications like corrosion monitoring, redox potential measurements, etc.