Question

____________ is one in which has a thin membrane of a specific ion conductor made from a mixture of silver sulphide and a silver halide.

(a) Glass electrode

(b) Solid-state electrode

(c) Glass pH electrode

(d) Clark oxygen electrode

I had been asked this question in an interview for job.

My query is from Potentiometric Biosensors topic in section Biosensors of Enzyme Technology

Answer 1

Correct choice is (b) Solid-state electrode

For explanation I would say: In solid state electrode, the glass membrane is replaced with a thin membrane of a specific ion conductor made from a mixture of silver sulphide and a silver halide. Glass electrode and Glass pH electrode has hydrated glass membrane and gas permeable membrane respectively. Clark oxygen electrode is used in amperometric biosensors.