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Flame ionization detectors are sensitive to which of the following gases?

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in Analytical Instrumentation by (131k points)
Flame ionization detectors are sensitive to which of the following gases?

(a) Carbon dioxide

(b) Methane

(c) Carbon monoxide

(d) Sulphur dioxide

The question was posed to me in final exam.

This interesting question is from Estimation of Hydrocarbons in division Pollution Monitoring Instruments of Analytical Instrumentation

1 Answer

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Correct option is (b) Methane

The explanation is: Flame ionization detectors are sensitive to methane since they are sensitive to organic compounds. They are insensitive to non-combustible gases. Hence, they are not sensitive to carbon monoxide, carbon dioxide and sulphur dioxide.

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