Simulation-based design of a microfabricated pneumatic electrospray nebulizer

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Publikace nespadá pod Ekonomicko-správní fakultu, ale pod Středoevropský technologický institut. Oficiální stránka publikace je na webu muni.cz.
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JÁRVÁS Gábor GRYM Jakub FORET František GUTTMAN Andras

Rok publikování 2015
Druh Článek v odborném periodiku
Časopis / Zdroj Electrophoresis
Fakulta / Pracoviště MU

Středoevropský technologický institut

Citace
www http://onlinelibrary.wiley.com/doi/10.1002/elps.201400387/epdf
Doi http://dx.doi.org/10.1002/elps.201400387
Obor Analytická chemie, separace
Klíčová slova CFD; Electrospray; Microfabrication; Modeling; Nebulizer
Popis A microfabricated pneumatic electrospray nebulizer has been developed and evaluated using computer simulations and experimental measurements of the MS signals. The microdevice under development is designed for electrospray MS interfacing without the need to fabricate an electrospray needle and can be used as a disposable or an integral part of a reusable system. The design of the chip layout was supported by computational fluid dynamics simulations. The tested microdevices were fabricated in glass using conventional photolithography, followed by wet chemical etching and thermal bonding. The performance of the microfabricated nebulizer was evaluated by means of TOF-MS with a peptide mixture. It was demonstrated that the nebulizer, operating at supersonic speed of the nebulizing gas, produced very stable nanospray (900 nL/min) as documented by less than 0.1% (SE) fluctuation in total mass spectrometric signal intensity.
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