Physics · Instrumentation and Environmental Monitoring
Which gas monitoring technique is based on the selective absorption of infrared radiation at specific wavelengths by pollutant gases?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Beta attenuation
- 2Non-dispersive infrared method✓
- 3UV fluorescence
- 4Chemiluminescence
Correct answer
Non-dispersive infrared method
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