Integrated monolithic microfabricated electrospray and...

G - Physics – 01 – N

Patent

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Details

G01N 30/72 (2006.01) B01D 15/14 (2006.01) B05B 5/00 (2006.01) G01N 30/60 (2006.01) H01J 49/04 (2006.01)

Patent

CA 2343055

An electrospray device (100), a liquid chromatography device and an electrospray-liquid chromatography system are disclosed. The electrospray device (100) includes a substrate (102) defining a channel (104) between an entrance orifice (106) on an injection surface (108) and an exit orifice on an ejection surface (112), a nozzle (110) defined by a portion recessed (114) from the ejection surface (112) surrounding the exit orifice, and an electrode for application of an electric potential to the substrate (102) to optimize and generate an electrospray. The exit orifice of the liquid chromatography device may be homogeneously interfaced with the entrance orifice (106) of the electrospray device (100) to form an integrated single system.

L'invention concerne un dispositif d'électronébulisation (100), un dispositif de chromatographie en phase liquide et un dispositif d'électronébulisation et de chromatographie en phase liquide. Le dispositif d'électronébulisation (100) comporte un substrat (102) qui définit un canal (104) entre un orifice d'entrée (106) sur une surface d'injection (108) et un orifice de sortie sur une surface d'éjection (112), une buse (110) définie par une partie en retrait (114) par rapport à la surface d'éjection (112) entourant l'orifice de sortie, et une électrode pour l'application d'un potentiel électrique au substrat (102) afin d'optimiser et de générer une électronébulisation. L'orifice de sortie du dispositif de chromatographie en phase liquide peut être couplé de façon homogène à l'orifice d'entrée (106) du dispositif d'électronébulisation (100) pour constituer un seul et unique système intégré.

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