MICROFLUIDIC DEVICE COMPRISING AN ELECTROSPRAY NOSE

摘要

The invention relates to a microfluidic device comprising a microfluidic chip (10) which is assembled to an electrospray structure (1), said microfluidic chip being equipped with a microfluidic channel (11) which opens onto an area of the surface of the chip by means of an outlet (12). The electrospray structure consists of at least one flat, thin point (3) comprising a capillary gap (4) which extends to the end (5) of the point such as to form a port for the discharge of the liquid to be sprayed. Moreover, the electrospray is disposed on the surface of the microfluidic chip such that the point (3) is cantilevered in relation to the chip (10) and such that the outlet (12) of the microfluidic channel opens into the capillary gap (4) of the point. The microfluidic device also comprises means for applying an electrospray voltage to the liquid to be sprayed.