Methods for detecting and quantifying gas species analytes using differential gas species diffusion
US11988662B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 7, 2016 |
| Grant date | May 21, 2024 |
| Priority date | — |
| Expiry date | Sep 19, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N33/4975
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Methods and sensors for the detection, identification, and quantification of one or more gas species, including volatile organic compounds, in a test sample are described. Methods employ gas sensors comprising a diffusion matrix present on the sensor surface. A gas analyte in a test sample diffuses through the matrix and is detected upon interaction of the analyte with the sensor. A response profile of a gas sensor to a gas analyte in the test sample is compared to a control gas sensor response profile determined in a similar manner for a known gas species. Comparisons of test sample and control sample sensor response profiles enable detection, identification, and quantification of a gas species analyte in a test sample.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.