Studies have found traces of drugs in our drinking water, which causes great concern. (www2.erie.gov)
The voluntary tests reportedly involve pupils providing a sample of saliva which is then tested for traces of drugs such as cannabis, amphetamines and cocaine, with the results available after about 20 minutes. (politics.co.uk)
Often used in crime labs to identify traces of drugs and fibers, FTIR can also determine the temperature to which organic matter has been heated — and Berna is among the first to adapt it for archaeology. (discovermagazine.com)