Micromachined analyte trap for gas phase streams
US5720798A · kind A · utility
35Cited by
11References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 30, 1996 |
| Grant date | Feb 24, 1998 |
| Priority date | — |
| Expiry date | Apr 30, 2016 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2030/122
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A method and apparatus for non-liquid solvent introduction of analyte into an analytical instrument and, more particularly, to a bonded liquid phase analyte trap with integral flow switching that may include a rapid solid-state heating and cooling device. The analyte trap includes a first wafer having a flow channel formed on its bottom side such that a second wafer attached to the bottom side of the first wafer encloses the flow channel and a stationary phase coating is chemically bonded to the walls of the flow channel to provide a mechanism for trapping analytes of interest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.