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GB1454553A - Counterflow isotachophoresis - Google Patents

Counterflow isotachophoresis

Info

Publication number
GB1454553A
GB1454553A GB5744473A GB5744473A GB1454553A GB 1454553 A GB1454553 A GB 1454553A GB 5744473 A GB5744473 A GB 5744473A GB 5744473 A GB5744473 A GB 5744473A GB 1454553 A GB1454553 A GB 1454553A
Authority
GB
United Kingdom
Prior art keywords
counterflow
constant current
isotachophoresis
dec
column
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB5744473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Pfizer Health AB
Original Assignee
LKB Produkter AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by LKB Produkter AB filed Critical LKB Produkter AB
Publication of GB1454553A publication Critical patent/GB1454553A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
    • G01N27/416—Systems
    • G01N27/447—Systems using electrophoresis
    • G01N27/44756—Apparatus specially adapted therefor
    • G01N27/44765—Apparatus specially adapted therefor of the counter-flow type

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Molecular Biology (AREA)
  • Chemical & Material Sciences (AREA)
  • Biochemistry (AREA)
  • Electrochemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Measuring Fluid Pressure (AREA)
  • Investigating Or Analysing Biological Materials (AREA)

Abstract

1454553 Isotachophoresis LKB-PRODUKTER AB 11 Dec 1973 [19 Dec 1972] 57444/73 Heading C7B In counterflow isotachophoresis, the position of the sample is fixed in the column by adjustment of the counterflow pressure and/or applied voltage to obtain a constant current through the column. As described, a current differentiator is used to detect the required constant current, and is incorporated in a supply having a constant voltage and/or constant current source. The sample position may be detected visually or automatically using a thermal, potential, U-V or conductivity detector. The process operates under self-regulating equilibrium conditions. Appropriate counterflow and/or voltage values may be predetermined to give a required position (indicated by the value of the constant current) and may be then used as starting values.
GB5744473A 1972-12-19 1973-12-11 Counterflow isotachophoresis Expired GB1454553A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE7216594A SE390766B (en) 1972-12-19 1972-12-19 PROCEDURE FOR RIVER ISOTACHOPHORES

Publications (1)

Publication Number Publication Date
GB1454553A true GB1454553A (en) 1976-11-03

Family

ID=20302493

Family Applications (1)

Application Number Title Priority Date Filing Date
GB5744473A Expired GB1454553A (en) 1972-12-19 1973-12-11 Counterflow isotachophoresis

Country Status (6)

Country Link
US (1) US3869365A (en)
JP (1) JPS5653694B2 (en)
DE (1) DE2363195A1 (en)
FR (1) FR2226072A5 (en)
GB (1) GB1454553A (en)
SE (1) SE390766B (en)

Families Citing this family (28)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE386742B (en) * 1973-11-14 1976-08-16 Lkb Produkter Ab APPARATUS FOR PREPARATIVE, ISOTACHOPHORETIC SEPARATION IN MICRO-SCALE
US3941678A (en) * 1974-02-28 1976-03-02 Shimadzu Seisakusho Ltd. Apparatus for electrophoretic analysis
CS178550B1 (en) * 1974-08-21 1977-10-31 Mirko Deml Isotachophoretic column
JPS5716115Y2 (en) * 1976-06-30 1982-04-05
US4459198A (en) * 1981-07-27 1984-07-10 Shimadzu Corporation Electrophoretic apparatus
JPS58174389U (en) * 1982-05-18 1983-11-21 スズキ株式会社 vehicle fuel tank
JPS59125051A (en) * 1982-12-29 1984-07-19 Kureha Chem Ind Co Ltd Cell unit for electrophoresis measurement of cell
JPS59125497U (en) * 1983-02-14 1984-08-23 スズキ株式会社 Fuel migration prevention device for vehicle fuel tanks
DE3603920A1 (en) * 1985-02-07 1986-08-07 Olympus Optical Co., Ltd., Tokio/Tokyo METHOD FOR RECORDING OR DISPLAYING IMAGES CREATED BY ELECTROPHORESIS
JPH065227B2 (en) * 1985-02-27 1994-01-19 オリンパス光学工業株式会社 Method for quantifying total protein value by electrophoresis
ATE302942T1 (en) * 1987-11-25 2005-09-15 Norberto A Guzman SELF-ACTIVE CAPILLARY ELECTROFORESIS DEVICE
US5096554A (en) * 1989-08-07 1992-03-17 Applied Biosystems, Inc. Nucleic acid fractionation by counter-migration capillary electrophoresis
DE4139472C1 (en) * 1991-11-29 1993-03-11 Gerhard Dr. 8011 Kirchheim De Weber
US5429728A (en) * 1992-08-31 1995-07-04 Hewlett-Packard Company Electroosmotic flow control using back pressure in capillary electrophoresis
US5482608A (en) * 1993-01-19 1996-01-09 Hewlett Packard Company Capillary electrophoresis flow control system
US5961800A (en) * 1997-05-08 1999-10-05 Sarnoff Corporation Indirect electrode-based pumps
US8562804B2 (en) 2006-07-20 2013-10-22 The Board Of Trustees Of The Leland Stanford Junior University Fluorescent finger prints for indirect detection in isotachophoresis
CA2661268C (en) * 2006-08-29 2016-09-13 Becton, Dickinson & Company Method and apparatus for carrier-free deflection electrophoresis
US8080144B2 (en) * 2006-10-04 2011-12-20 The United States of America as represented by the Secretary of Commerce, the National Institute of Standards and Technology Gradient elution electrophoresis
US8865401B2 (en) 2007-12-14 2014-10-21 The Johns Hopkins University Purification and concentration of proteins and DNA from a complex sample using isotachophoresis and a device to perform the purification
WO2009079028A1 (en) * 2007-12-14 2009-06-25 Johns Hopkins University Purification and concentration of proteins and dna from a complex sample using isotachophoresis and a device to perform the purification
US8846314B2 (en) 2009-03-03 2014-09-30 The Board Of Trustees Of The Leland Stanford Junior University Isotachophoretic focusing of nucleic acids
US8721858B2 (en) * 2010-03-12 2014-05-13 The Board Of Trustees Of The Leland Stanford Junior University Non-focusing tracers for indirect detection in electrophoretic displacement techniques
US8986529B2 (en) 2010-09-13 2015-03-24 The Board Of Trustees Of The Leland Stanford Junior University Isotachophoresis having interacting anionic and cationic shock waves
US8524061B2 (en) 2010-11-29 2013-09-03 The Board Of Trustees Of The Leland Stanford Junior University On-chip hybridization coupled with ITP based purification for fast sequence specific identification
EP2888581B1 (en) * 2012-08-21 2020-04-08 Universiteit Leiden Apparatus and process for depletion zone isotachophoresis
WO2017132630A1 (en) 2016-01-29 2017-08-03 Purigen Biosystems, Inc. Isotachophoresis for purification of nucleic acids
AU2018312570B2 (en) 2017-08-02 2024-01-11 Purigen Biosystems, Inc. Systems, devices, and methods for isotachophoresis

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3649498A (en) * 1965-10-06 1972-03-14 Victor Pretorius Detection in chromatography
US3453200A (en) * 1966-05-25 1969-07-01 Instrumentation Specialties Co Apparatus for density gradient electrophoresis
FI41214B (en) * 1968-03-27 1969-06-02 Pekka Kivalo
US3630882A (en) * 1968-06-13 1971-12-28 Ortec Inc Apparatus for particle separation
GB1333796A (en) * 1970-06-02 1973-10-17 Lkb Produkter Ab Electrophoresis

Also Published As

Publication number Publication date
US3869365A (en) 1975-03-04
SE390766B (en) 1977-01-17
JPS4991495A (en) 1974-08-31
DE2363195B2 (en) 1975-07-03
FR2226072A5 (en) 1974-11-08
JPS5653694B2 (en) 1981-12-21
DE2363195A1 (en) 1974-06-27

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee