High performance, hand-held gas chromatograph, method and system
US7343779B1 · kind B1 · utility
20Cited by
12References
52Claims
0Family size
Inventor
Key dates
| Filing date | Dec 5, 2005 |
| Grant date | Mar 18, 2008 |
| Priority date | — |
| Expiry date | Jul 24, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/3007
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A hand-held, ultra-sensitive gas chromatograph which provides real time detection and analysis of chemical compounds or impurities is disclosed. The detection sensitivity ranges from parts per trillion to parts per million with an average retention time ranging from thirty to forty-five seconds. Optimum calculated effective plate number is 55,000, with a response time on the order of two minutes. The self-contained apparatus operates on twenty-four watts, weighs twelve pounds, and measures 8″×6″×13.″
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.