Question

.......... type of electrochemical detection measures the electric current associated with the electron transfer involved in redox processes whereas ............ type of electrochemical detection measures conductance or capacitance changes associated with changes in the overall ionic medium between the two electrodes.

• A. Amperometry, potentiometry
• B. Potentiometry, impedance spectroscopy
• C. Amperometry, impedance spectroscopy
• D. Potentiometry, amperometry

Hint:

Understand the difference between amperometry (current-based) and potentiometry (voltage-based) to use the right technique for electrochemical detection.

Answer 1

The Correct Option is A

Step 1: Amperometric Detection.
Amperometry quantifies electric current resulting from electron transfer in redox reactions.

Step 2: Potentiometric Detection.
Potentiometry measures potential differences between electrodes to determine ion concentrations, typically reflecting ionic medium changes.

Final Answer: \[\boxed{\text{Amperometry, Potentiometry}}\]