- Consumption of spirit drinks containing Methanol causes many fatalities a poses a serious health risk.
- Detecting and quantifying methanol is of interest to distillers, research and law enforcement
Methanol in spirits can be measured and calibrated in the NIR:

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This NIR absorbance graph shows a series of increasing concentrations of methanol in spirit drink. The blue region and blue line show the part of the spectrum with maximum correlation to the methanol, yet this is a region where the spectrum appears to vary very little. This is a good example of the very small changes in absorbance which often need to be resolved in the NIR to build a calibration using multivariate analysis. Better signal to noise quickly brings better accuracy to such measurements.
*shown result in this graph was taken with a Nirquest spectrometer, so for application illustration only
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