Sample evaporative control
US6555389B1 · kind B1 · utility
137Cited by
13References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 23, 1999 |
| Grant date | Apr 29, 2003 |
| Priority date | — |
| Expiry date | Dec 23, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2035/00287
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
Devices and methods are provided using microfluidic devices for manipulating small volumes and determining a variety of chemical and physical events. The devices rely upon an opening to the atmosphere of a small volume in a zone, where a sample is placed in the zone where evaporation can occur. The zone is maintained in contact with a liquid medium that serves to replenish the liquid in the zone and maintain the composition of the mixture in the zone substantially constant. The diffusion of components in the zone is restricted during the course of the determination by the liquid flux into the zone.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.