Extended use planar sensors

摘要

An electrochemical sensor (30,130) characterized in that it comprises:
electrochemical means including an electrolyte (58),
a cathode contacting the said electrolyte (58),
an anode contacting the said electrolyte (58), and
a semipermeable membrane (60) separating the said electrochemical means from a sample region, the said semipermeable membrane comprising a first polymerization product of at least one nitrile-containing monomer and at least one conjugated diene monomer.