A mobile device that sniffs out smuggled currency

In America, they've found a way to stop dollar smugglers. A portable device recognizes the chemicals responsible for the smell of banknotes. The Bulk Currency Detection System detects smuggled money. It recognizes the volatile compounds emitted by banknotes. It works like a hunting dog. It is also more obedient and does not require expensive training sessions. Where will they take samples from? The device can collect samples from travelers, their luggage, and their vehicles. It can detect even traces of odor, including those from other odors such as perfume, food, fuel, and exhaust fumes, as well as in environments with humidity, fluctuating temperatures, and pressure. What does the US currency smell like? Before developing a prototype device, experts identified the substances emitted by the money and the rate at which they were released. It turned out that the US dollar contains an intriguing mix of volatile organic compounds. It consists of organic acids, furans, aldehydes, and other gases. The system can detect this aromatic pattern in less than a minute, according to Dr. Joseph Stetter, the project's director. What is BCDS based on? A method used to detect bombs and drugs is gas chromatography-mass spectrometry. This method is intended to help border guards catch criminals. During checks, they will be able to scan travelers' luggage and clothing. The presence of a large sum of money will signal a high concentration of gases. The device is intended to be a way to stop smugglers smuggling dollars from the United States to Mexico.