Back to results
US 7,454,988 B2Granted
Method for fluid sampling using electrically controlled droplets
AssigneeApplera Corporation
InventorRoy H. Tan
Life of this patent
Estimating the term…
Abstract
The present disclosure relates to a method for sampling a fluid, such as air. As fluid flows through a device, a scrubbing liquid is positioned in a pattern to contact the fluid and constituents in the fluid are transferred to in the liquid.
Claims22
A method for sampling a fluid, the method comprising:
- providing a sampling fluid in a directional stream;
- positioning a scrubbing liquid in a pattern to intercept the sampling fluid;
- contacting the sampling fluid with the scrubbing liquid to remove at least one constituent from the sampling fluid;
- collecting the scrubbing liquid to collect the constituent;
- and
- analyzing the scrubbing liquid for the presence of the constituent,
- wherein the scrubbing liquid is positioned in the pattern by electrical control.
4 more elements
A method for sampling gases, the method comprising:
- providing a gas in a directional stream;
- positioning a scrubbing liquid in a pattern droplets to intercept the gas;
- contacting the gas with the scrubbing liquid to remove at least one constituent from the gas;
- collecting the scrubbing liquid to collect the constituent;
- and
- analyzing the scrubbing liquid for the presence of the constituent,
- wherein the scrubbing liquid is positioned in the pattern of droplets by electrowetting on a dielectric.
4 more elements
A method for sampling gases, the method comprising:
- providing a gas in a directional stream;
- positioning a scrubbing liquid in a pattern of ferrofluid structures to intercept the gas;
- contacting the gas with the scrubbing liquid to remove at least one constituent from the gas;
- collecting the scrubbing liquid to collect the constituent;
- and
- analyzing the scrubbing liquid for the presence of the constituent,
- wherein the scrubbing liquid is positioned in the pattern of ferrofluid structures by applying a magnetic field to the ferrofluid.
4 more elements
Dependencies are inferred from the claim text.