Apparatus for reduction of selected ion intensities in confined ion beams
US6259091A · kind A · utility
30Cited by
11References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 15, 1998 |
| Grant date | Jul 10, 2001 |
| Priority date | — |
| Expiry date | Jun 15, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J49/145
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An apparatus for producing an ion beam having an increased proportion of analyte ions compared to carrier gas ions is disclosed. Specifically, the apparatus has an ion trap or a collision cell containing a reagent gas wherein the reagent gas accepts charge from the analyte ions thereby selectively neutralizing the carrier gas ions. Also disclosed is the collision cell as employed in various locations within analytical instruments including an inductively coupled plasma mass spectrometer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.