New machine-learning approach identifies one molecule in a billion selectively, with graphene sensors

https://phys.org/news/2023-03-machine-learning-approach-molecule-billion-graphene.html

"porous activated carbon thin film. 8 vdW complex features... robust accommodation of variations in gas chamber pressures, gas concentrations, ambient temperature, atmospheric relative humidity, tuning time, and tuning voltage... high-performance atmospheric gas electronic nose achieved distinguishing between four different environments (ammonia in atmospheric air, acetone in atmospheric air, acetone in nitrogen, and ammonia in dry air) 100% accuracy"

Related: A novel method to obtain acetone in slow-cost, simple manner

https://phys.org/news/2023-09-method-acetone-slow-cost-simple-manner.html