Photo-ionization detectors and associated methods thereof
US8922219B2 · kind B2 · utility
11Cited by
9References
7Claims
0Family size
Assignee
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Key dates
| Filing date | Nov 30, 2010 |
| Grant date | Dec 30, 2014 |
| Priority date | — |
| Expiry date | Apr 5, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/497
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A photo ionization detector (PID) is provided for selectively determining various compounds or gases present in a breath sample. The PID, comprises a substrate comprising a gas ionization chamber, at least one pair of ion sensing electrodes, and at least one amplifying circuit; and an ultraviolet (UV) ionization source to transmit a UV light beam into the gas ionization chamber. A system comprises the PID is also provided. A method of detecting a response pattern for various compounds or gases in breath using PID is also provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.