Researchers at the University of Bradford and other institutions in the United Kingdom reported in a new issue of Drug Detection and Analysis that they developed a handy, small detector using Raman spectroscopy. Raman spectroscopy is a spectrum that appears from the composition of a medium when light passes through a transparent medium. Therefore, the working principle of this kind of instrument is to use a special laser to irradiate the bottle, and then spectral analysis of the scattered light can tell whether it contains cocaine and other drugs.
Tests on various brands of wine have shown that, regardless of whether the color of the wine is light or dark, the bottle is colorless or brown, light green or dark green. The use of this instrument can detect cocaine dissolved in it and can detect it. The concentration reached is much lower than the concentration currently used by drug traffickers to evade inspections.
Researcher Taslim Munch said that in the face of large quantities or very expensive wines, customs officers could not open bottles to verify the suspicion of the drug. This kind of instrument does not need to open the bottle to complete the test, but also has the advantages of being portable and testing time, which will help the customs and the police to crack down on the smuggling of Du Pin.
In the same issue of Drug Detection and Analysis, Swiss researchers also reported another detector based on the principle of MRI. It also enabled the detection of cocaine dissolved in wine without opening the bottle. This kind of instrument is large in size and cannot be carried around, but it is suitable for the detection of large luggage.