"Nuclear magnetic resonance (NMR) spectrometry is known for its ability to rapidly identify chemicals. Because this technique does not compromise the sample, the sample's properties remain intact for additional testing. A typical NMR spectrometer, however, weighs a ton and occupies an entire laboratory. A research team from Livermore's Physical and Life Sciences Directorate has revamped the technology so that it weighs a mere 9 kilograms (20 pounds) and fits inside a briefcase. The new device can be transported into the field for on-the-spot analysis of potential chemical warfare agents or other hazardous chemicals."
Lawrence Livermore National Laboratory: https://www.llnl.gov/
Science & Technology Review (June 2010)