Which statement below is not true for a liquid-membrane based ion-selective electrode? ● A. Two reference electrodes measure the voltage difference across the ion-selective electrode organic polymer membrane. B. The organic polymer membrane separates the inner solution from the outer analyte solution. C. The organic polymer membrane is hydrophobic and is impregnated with a viscous organic solution containing an ion exchanger and sometimes a ligand specific for the analyte ion. O D. The potential difference across the organic polymer membrane occurs when the analyte ions embedded in the membrane diffuse into the inner aqueous solution creating a junction potential. O E. The potential difference is dependent only on the activity of anallyte ion in the outer solution.

Which statement below is not true for a liquid-membrane based ion-selective electrode? ● A. Two reference electrodes measure the voltage difference across the ion-selective electrode organic polymer membrane. B. The organic polymer membrane separates the inner solution from the outer analyte solution. C. The organic polymer membrane is hydrophobic and is impregnated with a viscous organic solution containing an ion exchanger and sometimes a ligand specific for the analyte ion. O D. The potential difference across the organic polymer membrane occurs when the analyte ions embedded in the membrane diffuse into the inner aqueous solution creating a junction potential. O E. The potential difference is dependent only on the activity of anallyte ion in the outer solution.

Principles of Instrumental Analysis

7th Edition

ISBN:9781305577213

Author:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Publisher:Douglas A. Skoog, F. James Holler, Stanley R. Crouch

Chapter23: Potentiometry

Section: Chapter Questions

Problem 23.14QAP

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