Photoionization detectors, ionization chambers for use in photoionization detectors, and methods of use of photoionization detectors
US7180076B2 · kind B2 · utility
5Cited by
8References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 30, 2005 |
| Grant date | Feb 20, 2007 |
| Priority date | — |
| Expiry date | Mar 30, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N27/66
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photoionization detector includes a housing, electrical contacts within the housing and an easily removable and replaceable photoionization chamber within the housing. The photoionization chamber includes a cathodic electrode and an anodic electrode which may be coated with a thin layer of material. The photoionization chamber and the associated cathodic electrode and anodic electrode are removable from within the housing as a unit. The photoionization chamber makes electrical connection with the contacts when seated within the housing regardless of the orientation of the photoionization chamber about an axis.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.