Method and apparatus for atmospheric pressure chemical ionization
US6794646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2003 |
| Grant date | Sep 21, 2004 |
| Priority date | — |
| Expiry date | Aug 20, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for use as an ion source for mass analysis includes a nebulizing device, a vaporizing device, a chamber, an ion sampling structure, and an ionizing device. The vaporizing device includes a vaporizing interior that terminates at a vaporizing device outlet. The chamber fluidly communicates with the vaporizing device outlet. The ion sampling structure has an ion sampling inlet fluidly communicating with the chamber and spaced from the vaporizing device outlet. The ionizing device includes first and second electrodes positioned to produce an electrical discharge therebetween a location closer to the vaporizing device outlet than to the ion sampling inlet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.