What is EC?

EC is not another method for determining concentrations of ions in complex samples (i.e. salt in food). It is also not a way to differentiate between different types of ions in the solution.

EC, also known as electrical conductivity, electrolytic conductivity, or conductivity measures the ability of a substance to transmit (conduct) and electrical current over a defined area. This transmittance is done on the atomic or ionic level. EC is a measurement of ion concentration in a sample, however, it is non-specific. Ions are charged particles in solution, and because they are charged, they are able to carry and transmit a current. This is a simplified definition for the measurement is affected by many things such as the type of ionic compound(s) dissolved in the water; the ions mobility, the solution viscosity, temperature as well as concentration.