Method for improved detection of carbon monoxide by infrared absorption spectroscopy
US6645772B1 · kind B1 · utility
15Cited by
9References
34Claims
0Family size
Assignee
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Key dates
| Filing date | Oct 18, 2000 |
| Grant date | Nov 11, 2003 |
| Priority date | — |
| Expiry date | Oct 23, 2020 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T436/205831
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method for detecting the presence and amount of carbon monoxide, comprising the use of infrared spectroscopy to compare the spectra of the test gas containing carbon monoxide and the reference gas. The reference gas is the test gas from which carbon monoxide had been removed by conversion using catalysts. The presence and quantity of carbon monoxide is determined by deducting the spectrum of the reference gas from the spectrum of the test gas. The catalysts comprise nanoparticles of gold precipitated on a metal oxide or hydroxide carrier. An apparatus implementing this method.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.