BRAINCAKEIR in Breathalysers and Pollution Monitoring
IR spectroscopy can measure how much of a substance is present, as well as identify it. The amount of radiation absorbed at a characteristic wavenumber increases with the concentration of the absorbing compound, so a calibrated instrument can convert an absorbance reading into a concentration.
Breathalysers
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More in Analytical Techniques
- Infrared Spectroscopy
- Bond Vibrations and IR Absorption
- Characteristic IR Absorptions
- Interpreting IR Spectra
- Mass Spectrometry of Organic Compounds
- The Molecular Ion Peak
- The M+1 Peak
- Fragmentation
All 10 lessons in Analytical Techniques · All OCR AS-level Chemistry topics