Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed

Stevens, Fred J

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Title: Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed

Abstract

A novel method of electric field flow fractionation for separating solute molecules from a carrier solution is disclosed. The method of the invention utilizes an electric field that is periodically reversed in polarity, in a time-dependent, wave-like manner. The parameters of the waveform, including amplitude, frequency and wave shape may be varied to optimize separation of solute species. The waveform may further include discontinuities to enhance separation.

Inventors:

Stevens, Fred J ^[1]

Naperville, IL

Issue Date:: 1992-01-01

Research Org.:: Argonne National Laboratory (ANL), Argonne, IL (United States)

OSTI Identifier:: 868407

Patent Number(s):: 5133844

Assignee:: United States Department of Energy (Washington, DC)

Patent Classifications (CPCs):: B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES

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B - PERFORMING OPERATIONS B03 - SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS B03B - SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
B03B5/00 - Washing granular, powdered or lumpy materials

G - PHYSICS G01 - MEASURING G01N - INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N2030/0035 - {electrical field}
G01N2030/007 - {programming of driving force
G01N27/44773 - {Multi-stage electrophoresis, e.g. two-dimensional electrophoresis}
G01N30/0005 - {Field flow fractionation}
G01N30/8658 - {Optimising operation parameters}

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DOE Contract Number:: W-31109-ENG-38

Resource Type:: Patent

Country of Publication:: United States

Language:: English

Subject:: method; electric; field; flow; fractionation; polarity; periodically; reversed; novel; separating; solute; molecules; carrier; solution; disclosed; utilizes; time-dependent; wave-like; manner; parameters; waveform; including; amplitude; frequency; wave; shape; varied; optimize; separation; species; discontinuities; enhance; carrier solution; electric field; novel method; enhance separation; periodically reversed; separating solute; field flow; flow fractionation; /204/

Citation Formats


                    Stevens, Fred J. Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed.  United States: N. p., 1992. 
        Web.

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                    Stevens, Fred J. Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed.  United States.

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                    Stevens, Fred J. Wed .  
        "Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed".  United States.  https://www.osti.gov/servlets/purl/868407.

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@article{osti_868407,

  title        = {Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed},

  author       = {Stevens, Fred J},

  abstractNote = {A novel method of electric field flow fractionation for separating solute molecules from a carrier solution is disclosed. The method of the invention utilizes an electric field that is periodically reversed in polarity, in a time-dependent, wave-like manner. The parameters of the waveform, including amplitude, frequency and wave shape may be varied to optimize separation of solute species. The waveform may further include discontinuities to enhance separation.},

  doi          = {},

  journal      = {},
number       = ,

  volume       = ,

  place        = {United States},

  year         = {1992},

  month        = {1}

}

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Works referenced in this record:

Field-Flow Fractionation
journal, October 1988

Giddings, J. Calvin
Chemical & Engineering News Archive, Vol. 66, Issue 41
https://doi.org/10.1021/cen-v066n041.p034

Transport, space, entropy, diffusion and flow
journal, June 1987

Giddings, J. Calvin
Journal of Chromatography A, Vol. 395
https://doi.org/10.1016/S0021-9673(01)94097-X

Focusing counterparts of electrical field flow fractionation and capillary zone electrophoresis
journal, January 1989

Thormann, Wolfgang; Firestone, Millicent A.; Dietz, Mark L.
Journal of Chromatography A, Vol. 461
https://doi.org/10.1016/S0021-9673(00)94278-X

Field-Flow Fractionation
journal, September 1988

Caldwell, Karin D.
Analytical Chemistry, Vol. 60, Issue 17
https://doi.org/10.1021/ac00168a717

Electrical Field-Flow Fractionation of Proteins
journal, April 1972

Caldwell, K. D.; Kesner, L. F.; Myers, M. N.
Science, Vol. 176, Issue 4032
https://doi.org/10.1126/science.176.4032.296

Retention by electrical field-flow fractionation of anions in a new apparatus with annular porous glass channels
journal, May 1987

Davis, Joe M.; Fan, F. R. F.; Bard, A. J.
Analytical Chemistry, Vol. 59, Issue 9
https://doi.org/10.1021/ac00136a017

Field-flow fractionation
journal, September 1976

Giddings, J. Calvin
Journal of Chromatography A, Vol. 125, Issue 1
https://doi.org/10.1016/S0021-9673(00)93808-1

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Similar Records

Title: Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed

Abstract

Citation Formats

Field-Flow Fractionation journal, October 1988

Transport, space, entropy, diffusion and flow journal, June 1987

Focusing counterparts of electrical field flow fractionation and capillary zone electrophoresis journal, January 1989

Field-Flow Fractionation journal, September 1988

Electrical Field-Flow Fractionation of Proteins journal, April 1972

Retention by electrical field-flow fractionation of anions in a new apparatus with annular porous glass channels journal, May 1987

Field-flow fractionation journal, September 1976

Field-Flow Fractionation
journal, October 1988

Transport, space, entropy, diffusion and flow
journal, June 1987

Focusing counterparts of electrical field flow fractionation and capillary zone electrophoresis
journal, January 1989

Field-Flow Fractionation
journal, September 1988

Electrical Field-Flow Fractionation of Proteins
journal, April 1972

Retention by electrical field-flow fractionation of anions in a new apparatus with annular porous glass channels
journal, May 1987

Field-flow fractionation
journal, September 1976