Flow sensors for continuous potentiometric determination of ions in solution on microsamples and process for their implementation

摘要

The present invention concerns the implementation of a flow sensor for potentiometric determination of inorganic ions in solution on microvolumes of samples. The sensor comprises a PVC polymer membrane doped with an appropriate ionophore and assembled with an assembly procedure in a microchamber delimited by two such membranes. The sensor permits simultaneous determination of two analytes present in a solution flowing in the microchamber delimited by the ion-selective membranes. Such sensors, belonging to the category of ISE sensors (Ion Selective Electrodes) represent a class of analytical instruments with broad use in the chemical, clinical, environmental and process line control field. IMAGE