Electrospray emitter assemblies for microfluidic chromatography apparatus
US9518963B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Aug 23, 2012 |
| Grant date | Dec 13, 2016 |
| Priority date | — |
| Expiry date | May 28, 2033 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49908
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An apparatus for chemical separations includes a microfluidic substrate having an outlet aperture for outputting an eluent of a sample. An emitter assembly includes having a deformable end portion, an inlet near the deformable end portion to receive the sample eluent from the microfluidic substrate, and an electrically conductive outlet portion to emit a spray of the sample eluent. A force-applying unit applies a force to the emitter assembly that urges the deformable end portion into contact with the microfluidic substrate. The deformable end portion is more elastic than the microfluidic substrate so that the contact between the microfluidic substrate and the deformable end portion produces a substantially fluid-tight seal between the outlet aperture of the microfluidic substrate and the inlet of the emitter assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.