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Desorption electrospray ionization (DESI) is an ambient ionization technique that can be coupled to mass spectrometry (MS) for chemical analysis of samples at atmospheric conditions. Coupled ionization sources-MS systems are popular in chemical analysis because the individual capabilities of various sources combined with different MS systems ...
There are other hybrid ionization methods which combine resonant or non-resonant laser desorption with post electrospray ionization. One example is electrospray laser desorption ionization (ELDI), which uses an ultraviolet laser to form ions by irradiating the sample directly, then interacting with the electrospray plume without using any ...
Although the development of DART actually predated the desorption electrospray ionization (DESI) [3] ion source, the initial DART publication did not appear until shortly after the DESI publication, and both ion sources were publicly introduced in back-to-back presentations by R. G. Cooks and R. B. Cody at the January 2005 ASMS Sanibel Conference.
In 2001, more than 1700 papers on proteomics were published, many using electrospray ionization. [9] Electrospray ionization provides a way to get accurate information about the mass of a large molecule very quickly, even when it is in a mixture of other molecules. [10] The liquid sample is introduced into an electrospray source (at atmospheric ...
Nanospray desorption electrospray ionization (nano-DESI) is an ambient pressure ionization technique used in mass spectrometry (MS) for chemical analysis of organic molecules. [1] In this technique, analytes are desorbed into a liquid bridge formed between two capillaries and the sampling surface. [ 2 ]
DESI allows for ambient ionization of samples at atmospheric pressure, with little sample preparation. Diagram of a SESI ambient ionization source. Extractive electrospray ionization is a spray-type, ambient ionization method that uses two merged sprays, one of which is generated by electrospray. [49]
ADI – Ambient desorption ionization; AE – Appearance energy; AFADESI – Air flow-assisted desorption electrospray ionization; AFAI – Air flow-assisted ionization [3] AFAPA – Aerosol flowing atmospheric-pressure afterglow; AGHIS – All-glass heated inlet system [4] AIRLAB – Ambient infrared laser ablation [5] AMS – Accelerator mass ...
Electrospray ionization (ESI) is a technique that involves using high voltages to create an electrospray, or a fine aerosol created by the high voltages. [31] ESI sample preparation can be very important and the quality of results can be heavily determined by the characteristics of the sample. [ 32 ]