ENZYME ASSAYS - MEASURED BY CHANGES IN SOLUTION CONDUCTIVITY

Simple, Sensitive, Low Cost (ca. £200) &  Reliable

                     EASY TO BUILD

                PCB available soon

Can be used for: Blood & Urine Clinical Tests, Industrial,

       College & School projects [see APPLICATIONS]

Uses two low cost electrochemical cells (Sample & Reference) in an ac bridge for extra differential sensitivity

The simple bridge circuit & the apparatus are shown below