The team at St. Andrews demonstrated a method called Raman spectroscopic analysis to examine the liquids in the bottle. Raman spectroscopy is a powerful and popular method to gain information at the molecular level, the method having a wide range of applications in biomedicine, cultural heritage, and defence.
In the context of whiskey, a laser beam is focused on the bottle. This generates Raman signals from the alcoholic spirit inside the bottle. However, glass is a highly Raman active substance, often masking regions of interest within the bottle. Unwanted signals originating from the glass bottle itself can significantly interfere with signals from the bottle's contents, reducing their effectiveness. This is a major obstacle with the method, researchers said.
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e testing for suspected fraud or adulteration of such pricey drinks, touchless sensing without opening the bottles would be preferable. This would preserve the original value of these products. <span>The team at St. Andrews demonstrated a method called Raman spectroscopic analysis to examine the liquids in the bottle. Raman spectroscopy is a powerful and popular method to gain information at the molecular level, the method having a wide range of applications in biomedicine, cultural heritage, and defence. In the context of whiskey, a laser beam is focused on the bottle. This generates Raman signals from the alcoholic spirit inside the bottle. However, glass is a highly Raman active substance, often masking regions of interest within the bottle. Unwanted signals originating from the glass bottle itself can significantly interfere with signals from the bottle's contents, reducing their effectiveness. This is a major obstacle with the method, researchers said. Researchers used laser to test the authenticity of the drinks | Photo Credit: University of St. Andrews The team used a cone shaped lens in the process to cope with this issue, excludin
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