Homogeneous potentiometer sensor

A homogeneous potentiometer sensor for sensing the presence of ions in a measurement solution, the sensor comprising a body having at least one active surface portion or face delimiting at least one zone which is sensitive to an ionic species, the sensor being provided with a conductor of an electrically conductive material disposed in relationship to the body and connected to an electrical connection cable, wherein:

• the body is a matrix body made of a single material which does not conduct electricity, which is chemically inert, and which has the ability to be filled with various different materials in the dispersed, dissolved, or grafted state;
• the sensitive zone of the matrix body comprises:
• a layer or thickness of ion sensitive material dispersed, dissolved, or grafted into the matrix body for being put into contact with the measurement solution;
• an underlayer or underthickenss of an electronically conductive material dispersed, dissolved, or grafted into the matrix body;
• and an intermediate layer or thickness in intimate connection with the layer and with the underlayer and which is dispersed, dissolved, or grafted into the matrix body;
• and
• the conductor passes through a portion of the matrix body in sealed manner and is inserted into the underlayer.