chemical detector

A handheld device can detect trace chemicals, everything from illicit drugs to pollution, as quickly as a breathalyzer identifies alcohol
The chip, which also may have uses in food safety monitoring, anti-counterfeiting and other fields
Chemical sensing chip could potentially sniff out cocaine, opioids and marijuana

What if you could test for cocaine, opioids and marijuana as quickly as a breathalyzer

New small chemical detector can identify substances from a distance of more than 100 feet away

A chemical sensor prototype developed at the University of Michigan will be able to detect