 Liquid junction potential

Liquid junction potential is an electrochemical phenomenon that occurs at the interface between two different electrolyte solutions when they are in contact with each other. It arises due to differences in the mobility and concentration of ions in the two solutions. When two electrolyte solutions meet, ion concentration and mobility differences lead to the development of a potential difference. For example, if one solution has a higher concentration of a certain ion compared to the other, the movement of that ion can create a difference in electrical charge across the boundary.