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Dayton DUI Attorney Charles Rowland > Posts tagged "Tennessee"

Infrared Spectroscopy and the Falsely High Breath Test (by DaytonDUI)

The Intoxilyzer 8000 operates using the scientific principle of infrared (IR) spectroscopy, which identifies molecules based on the way they absorb infrared (IR) light.  More specifically, when molecules in a breath sample are exposed to IR light the way they vibrate changes due to the bending of the (C-O, O-H, C-H, C-C) bonds.  Each type of bond absorbs light at a known wavelength, thus the amount of IR absorption identifies a substance as ethanol and how much ethanol is in the sample.But here’s the rub…  The machine can identify any compound containing a methyl group molecular structure as ethanol thereby...

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