CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?

By changing the gases in the reference cell

By increasing the sample flow rate

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1.	CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?
A.	With larger cell path lengths
B.	With smaller cell path lengths
C.	By changing the gases in the reference cell
D.	By increasing the sample flow rate
Answer» B. With smaller cell path lengths

Discussion

2.	Hydrogen flame ionization detector can be used to detect only the peak of CO and not methane.
A.	True
B.	False
Answer» C.

Discussion

3.	Non-dispersive infrared analyzer depends on the characteristic absorption of the CO molecule at a wavelength of __________
A.	5.4 m
B.	4.6 m
C.	8.9 m
D.	10.8 m
Answer» C. 8.9 m

Discussion

Explore topic-wise MCQs in Analytical Instrumentation.

CO analyzers based on infrared absorption would give greater sensitivity under which of the following conditions?

Hydrogen flame ionization detector can be used to detect only the peak of CO and not methane.

Non-dispersive infrared analyzer depends on the characteristic absorption of the CO molecule at a wavelength of __________