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Swedish researchers at the Karolinska Institutet have developed a system called SensAbues, which allows them to use breath analysis to test for 12 different drugs in someones system with 20 breaths, including cocaine, marijuana and amphetamines. The reason it works very accurately is because small amounts of molecules from our blood diffuse into the lining fluid of the lungs, therefore reflecting micro-particles of substances in our bloodstream through the breath. This break through in combining science and technology is sure to go into developing something as convenient as the roadside breathalyzers used for alcohol testing, and we might soon see them in U.S.
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