noun. The process in which atomic or molecular species leave the surface of a solid and escape into the surroundings; the reverse of absorption or adsorption

noun. changing from an adsorbed state on a surface to a gaseous or liquid state

"The research from Purdue, led by analytical chemistry professor Graham Cooks, developed a technique called desorption electrospray ionization, or DESI, that eliminates a part of the mass spectrometry process, and thus speeds up the detection of substances to less than 10 seconds, said Williams."

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