| has gloss | eng: Desorption electrospray ionization (DESI) is an ambient ionization technique that can be used in mass spectrometry for chemical analysis. It is an atmospheric pressure ion source that ionizes gases, liquids and solids in open air under ambient conditions. It was developed in 2004 by Professor Graham Cooks et al.. from Purdue University and is now available commercially by Prosolia Inc. DESI is a similar ionization technique to Direct Analysis in Real Time (DART) in its versatility, applications and analysis time. It is different in that some sample preparation is required; liquid samples have to be deposited on a desired surface and allowed to dry and gases have to be adsorbed unto a material. |
