Methods and apparatus for mass spectrometry utilizing an AC electrospray device
US8716675B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 27, 2011 |
| Grant date | May 6, 2014 |
| Priority date | — |
| Expiry date | Sep 10, 2031 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB05B5/0255
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An alternating current electrospray mass spectrometry device includes an electrospray device having at least one emitter providing a passageway for transmission of an analyte sample. At least one conductive element is in electrical communication with the at least one emitter. A power source generates an alternating current electric field to form a liquid cone at a tip of the emitter and ionizes the analyte sample present in the liquid cone. The frequency of the electric field entrains low mobility ions in the liquid cone. The AC electric field causes the emitter to discharge the liquid cone as a liquid aerosol drop, and a mass spectrometry device analyzes the ionized analyte sample to determine the composition of the contained analyte sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.