Ambient ionization

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Ambient ionization
Desorption of molecules and formation of ions outside the mass spectrometer directly from samples in their native environment with no or minimal sample preparation. Examples are desorption electrospray ionization (DESI) and direct analysis in real time (DART).
Note: "Direct analysis in real time" is a proprietary term indicating the formation of ions from a solid or liquid sample at atmospheric pressure through the interaction of a gas stream containing internally excited atoms or molecules with the surface. The excited-state species are typically formed in a glow discharge in helium or nitrogen. The term should only be used to describe the commercial product.
Related Term(s):

R. G. Cooks, Z. Ouyang, Z. Takats, J. M. Wiseman. Science 311, 1566 (2006). ( )

From Definitions of Terms Relating to Mass Spectrometry (IUPAC Recommendations 2013); DOI: 10.1351/PAC-REC-06-04-06 © IUPAC 2013.

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