Simple Fingerprint Test is Enough to Know Cocaine Use
May 16, 2015
If you are one of those using cocaine, law enforcement officials may soon catch you by simply examining your fingerprints. Scientists have developed a new type of drug test that can tell whether you have taken cocaine by analyzing chemical traces left behind in your fingerprint. A team of scientists led by the University of Surrey discovered a test that makes use of the Mass spectrometry chemical analysis technique – a method proved more accurate than those currently used saliva, blood or urine samples relied on by authorities. " When someone has taken cocaine, they excrete traces of benzoylecgonine and methylecgonine as they metabolize the drug, and these chemical indicators are present in fingerprint residue ," said Dr. Melanie Bailey, the lead researcher from the University of Surrey. How is it all done? A person's fingerprint sample is treated with a mixture of methanol and water in an attempt to locate the traces. A mass spectrometer is then used to ...
