Which of the following transducers must be used for dissolved oxygen analyser?
A. Potentiometric
B. Polarographic
C. Ion-selective electrode
D. Optical transducer
Answer:B
Which of the following transducers must be used for dissolved oxygen analyser?
A. Potentiometric B. Polarographic C. Ion-selective electrode D. Optical transducer
Explanation: Polarographic transducer must be used for dissolved oxygen analyser. Dissolved oxygen is the measure of ability of water to sustain aquatic life.