Concept of screen-printed porous nanocomposite electrode and its applications ... the researchers introduced oxygen-containing groups that impart a negative charge to the electrode surface. "At pH 7, ...

The University of Glasgow has created a pH sensor for soil testing that can be composted at the end of its life. It is an impedance-based sensor, using screen-printed interdigitated carbon-based ...

The pH meter consists of a reference electrode and a pH electrode, and the potential difference between these two electrodes is measured. The pH of the solution can be directly calculated from the ...