Purdue chemists given an old laboratory'bloodhound'a sharper nose

摘要

Purdue University chemists have developed a fast,efficient means of analyzing chemical samples found on surfaces,resulting in a device that could impact everything from airport security to astrobiology to forensic science.A team,including R.Graham Cooks,has improved the mass spectrometer,a device well known to chemists for its ability to provide information on the composition of unknown substances.