Parallel gas chromatograph with microdetector array
US7281408B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 20, 2003 |
| Grant date | Oct 16, 2007 |
| Priority date | — |
| Expiry date | Feb 17, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/8881
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Gas chromatographs of the invention generally comprise four or more analysis channels. Specifically, four or more gas chromatography columns are configured for parallel analysis of four or more gaseous samples with detection being effected using a microdetector array comprising four or more microdetectors. In one embodiment, the four or more microdetectors 510 are microfabricated detectors, and are integrally formed with a substrate or with one or more microchip bodies mounted on a substrate. In a preferred embodiment, a microdetector array comprises four or more thermal conductivity detectors having one or more thin-film detection filaments. A preferred heated environment for highly parallel gas chromatographs is also disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.