Apparatus and method for performing microfluidic manipulations for chemical analysis
Abstract
A microchip apparatus and method provide fluidic manipulations for a variety of applications, including sample injection for microchip liquid chromatography. The microchip is fabricated using standard photolitographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis is performed in channels formed in the substrate. Injections are made by electro-osmotically pumping sample through the injection channel that crosses the separation channel, followed by a switching of the potentials to force a plug into the separation channel.
- Inventors:
-
- Knoxville, TN
- Issue Date:
- Research Org.:
- Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)
- OSTI Identifier:
- 874215
- Patent Number(s):
- 6342142
- Assignee:
- UT-Battelle, LLC (Oak Ridge, TN)
- Patent Classifications (CPCs):
-
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01D - SEPARATION
B - PERFORMING OPERATIONS B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL B01J - CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY
- DOE Contract Number:
- AC05-84OR21400
- Resource Type:
- Patent
- Country of Publication:
- United States
- Language:
- English
- Subject:
- apparatus; method; performing; microfluidic; manipulations; chemical; analysis; microchip; provide; fluidic; variety; applications; including; sample; injection; liquid; chromatography; fabricated; standard; photolitographic; procedures; wet; etching; substrate; cover; plate; joined; direct; bonding; capillary; electrophoresis; performed; channels; formed; injections; electro-osmotically; pumping; channel; crosses; separation; followed; switching; potentials; force; plug; wet etching; liquid chromatograph; microfluidic manipulations; performing microfluidic; including sample; provide fluid; /204/422/
Citation Formats
Ramsey, J Michael. Apparatus and method for performing microfluidic manipulations for chemical analysis. United States: N. p., 2002.
Web.
Ramsey, J Michael. Apparatus and method for performing microfluidic manipulations for chemical analysis. United States.
Ramsey, J Michael. Tue .
"Apparatus and method for performing microfluidic manipulations for chemical analysis". United States. https://www.osti.gov/servlets/purl/874215.
@article{osti_874215,
title = {Apparatus and method for performing microfluidic manipulations for chemical analysis},
author = {Ramsey, J Michael},
abstractNote = {A microchip apparatus and method provide fluidic manipulations for a variety of applications, including sample injection for microchip liquid chromatography. The microchip is fabricated using standard photolitographic procedures and chemical wet etching, with the substrate and cover plate joined using direct bonding. Capillary electrophoresis is performed in channels formed in the substrate. Injections are made by electro-osmotically pumping sample through the injection channel that crosses the separation channel, followed by a switching of the potentials to force a plug into the separation channel.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Jan 01 00:00:00 EST 2002},
month = {Tue Jan 01 00:00:00 EST 2002}
}
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