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Electrospray may be used in nanotechnology, [18] for example to deposit single particles on surfaces. This is done by spraying colloids on average containing only one particle per droplet. The solvent evaporates, leaving an aerosol stream of single particles of the desired type.
Electrospray (nanoSpray) ionization source. Electrospray ionization (ESI) is a technique used in mass spectrometry to produce ions using an electrospray in which a high voltage is applied to a liquid to create an aerosol.
Ambient ionization techniques are attractive for many samples for their high tolerance to complex mixtures and for fast testing. EESI has been employed for the rapid characterization of living objects, [10] native proteins, [11] and metabolic biomarkers.
Electrospray-assisted laser desorption/ionization (ELDI) uses a 337 nm UV laser [79] or 3 μm infrared laser [80] to desorb material into an electrospray source. Matrix-assisted laser desorption electrospray ionization (MALDESI) [81] is an atmospheric pressure ionization source for generation of multiply charged ions. An ultraviolet or infrared ...
The term laser electrospray mass spectrometry has been used to denote the use of a femtosecond laser for ablation. [29] [30] Laser ablation into an electrospray produces highly charged ions that are similar to those observed in direct electrospray. An alternative ionization approach following laser desorption is a plasma.
Secondary electrospray ionization mechanism diagram. In the early days of SESI, two ionization mechanisms were under debate.: the droplet-vapor interaction model postulates that vapors are adsorbed in the electrospray ionization (ESI) droplets, and then reemitted as the droplet shrinks, just as regular liquid phase analytes are produced in electrospray ionization; on the other hand, the ion ...
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 ]
A colloid thruster (or "electrospray thruster") is a type of low thrust electric propulsion rocket engine that uses electrostatic acceleration of charged liquid droplets for propulsion. In a colloid thruster, charged liquid droplets are produced by an electrospray process and then accelerated by a static electric field.