DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
 [1]
  1. Naperville, IL
Issue Date:
Research Org.:
Argonne National Lab. (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
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.
Stevens, Fred J. Method of electric field flow fractionation wherein the polarity of the electric field is periodically reversed. United States.
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.
@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}
}

Works referenced in this record:

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