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Which of the following biosensors use the movement of electrons produced during redox reactions?

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in Analytical Instrumentation by (131k points)
Which of the following biosensors use the movement of electrons produced during redox reactions?

(a) Amperometric biosensor

(b) Potentiometric biosensors

(c) Piezo-electric biosensors

(d) Optical biosensors

This question was addressed to me during an online exam.

This key question is from Biosensors in chapter pH Meters and Ion Analysers of Analytical Instrumentation

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Correct answer is (a) Amperometric biosensor

The best I can explain: Amperometric biosensor uses the movement of electrons produced during redox reactions. Redox reactions involve both reduction and oxidation.

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