CA2150017A1 - Reference Electrode - Google Patents

Reference Electrode

Info

Publication number
CA2150017A1
CA2150017A1 CA2150017A CA2150017A CA2150017A1 CA 2150017 A1 CA2150017 A1 CA 2150017A1 CA 2150017 A CA2150017 A CA 2150017A CA 2150017 A CA2150017 A CA 2150017A CA 2150017 A1 CA2150017 A1 CA 2150017A1
Authority
CA
Canada
Prior art keywords
medium
sample
potential
reference electrode
analytic
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.)
Granted
Application number
CA2150017A
Other languages
French (fr)
Other versions
CA2150017C (en
Inventor
Carter R. Anderson
Kee Van Sin
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.)
International Technidyne Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of CA2150017A1 publication Critical patent/CA2150017A1/en
Application granted granted Critical
Publication of CA2150017C publication Critical patent/CA2150017C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G01N27/28—Electrolytic cell components
    • G01N27/30—Electrodes, e.g. test electrodes; Half-cells
    • G01N27/301—Reference electrodes

Abstract

A reference electrode system for a disposable test cell which provides both a reference electrical potential and a liquid junction between the reference medium and as analytic or sample medium to which sample is introduced to be tested includes a substrate (11) carrying and supporting a thin metallic electrode layer, an hydrophilic medium overlays the electrodes, a portion connecting the metallic layer and the sample conducting medium to provide an electrical connection and free diffusion liquid junction with the sample medium, a liquid impermeable dielectric barrier layer (15) sealing all but a selected, relatively minor portion (17) of the hydrophilic medium exposed to contact the analytic medium. Electrolyte salts introduced into the free diffusion channel control both the reference electrode potential and the junction potential.
CA002150017A 1992-11-24 1993-05-13 Reference electrode Expired - Fee Related CA2150017C (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US07/980,086 1992-11-24
US07/980,086 US5384031A (en) 1992-04-29 1992-11-24 Reference electrode
PCT/US1993/004702 WO1994012869A1 (en) 1992-11-24 1993-05-13 Reference electrode

Publications (2)

Publication Number Publication Date
CA2150017A1 true CA2150017A1 (en) 1994-06-09
CA2150017C CA2150017C (en) 1999-08-10

Family

ID=25527354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002150017A Expired - Fee Related CA2150017C (en) 1992-11-24 1993-05-13 Reference electrode

Country Status (8)

Country Link
US (1) US5384031A (en)
EP (1) EP0673506B1 (en)
JP (1) JP2625034B2 (en)
AU (1) AU4380593A (en)
CA (1) CA2150017C (en)
DE (1) DE69333218T2 (en)
ES (1) ES2210240T3 (en)
WO (1) WO1994012869A1 (en)

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU6084496A (en) 1995-11-03 1997-05-08 Ciba Corning Diagnostics Corp. Reference electrode assembly
JP3369547B2 (en) * 1998-06-04 2003-01-20 ラジオメーター・メディカル・アクティーゼルスカブ Reference electrode
JP2001004581A (en) * 1999-06-24 2001-01-12 Sentan Kagaku Gijutsu Incubation Center:Kk Very small reference electrode
PT1261860E (en) * 2000-03-09 2007-03-30 Clinical Analysis Corp Medical diagnostic system
US20060108218A1 (en) * 2001-03-05 2006-05-25 Clinical Analysis Corporation Test cell for use with medical diagnostic instrument
JP2004534226A (en) 2001-06-29 2004-11-11 メソ スケイル テクノロジーズ，エルエルシー Assay plate, reader system and method for luminescence test measurement
US20030224523A1 (en) * 2002-05-30 2003-12-04 Thornberg John Herbert Cartridge arrangement, fluid analyzer arrangement, and methods
US7569393B2 (en) 2002-06-28 2009-08-04 International Technidyne Corporation Analytical test cartridge; and, methods
US20040163970A1 (en) * 2003-02-20 2004-08-26 Diametrics Medical, Inc. Test cartridge, system for sensing fluid, and methods
US7373195B2 (en) 2004-07-30 2008-05-13 Medtronic, Inc. Ion sensor for long term use in complex medium
SG10201403559UA (en) 2011-02-28 2014-10-30 Aytu Bioscience Inc Method and apparatus for measuring oxidation-reduction potential
AU2013249126B2 (en) 2012-04-19 2015-10-01 Aytu Bioscience, Inc. Multiple layer gel
CA2847665A1 (en) 2012-10-23 2014-04-23 Raphael Bar-Or Methods and systems for measuring and using the oxidation-reduction potential of a biological sample
DE102014105575A1 (en) 2014-04-17 2015-10-22 Innovative Sensor Technology Ist Ag Process for the preparation of a pH half cell and a pH half cell
TWI687683B (en) * 2019-04-08 2020-03-11 禪譜科技股份有限公司 Long-lasting disposable reference electrode

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL132523C (en) * 1960-03-07
US3700579A (en) * 1970-03-12 1972-10-24 Nat Res Dev Apparatus for measuring the concentration of dissolved oxygen in an aqueous solution
DE2133419B1 (en) * 1971-07-05 1972-11-16 Pfaudler Werke Ag Measuring probe for determining the ion concentration in liquids
US4571292A (en) * 1982-08-12 1986-02-18 Case Western Reserve University Apparatus for electrochemical measurements
US4454007A (en) * 1983-01-27 1984-06-12 E. I. Du Pont De Nemours And Company Ion-selective layered sensor and methods of making and using the same
US4734184A (en) * 1985-08-29 1988-03-29 Diamond Sensor Systems, Inc. Self-activating hydratable solid-state electrode apparatus
US4913793A (en) * 1985-09-10 1990-04-03 Broadley-James Corporation Reference electrode and method of making same
DE3789898T2 (en) * 1986-07-10 1994-09-08 Terumo Corp REFERENCE ELECTRODE.
EP0269031B1 (en) * 1986-11-27 1994-03-30 Horiba, Ltd. Sheet type glass electrode
US5037527A (en) * 1987-08-28 1991-08-06 Kanzaki Paper Mfg. Co., Ltd. Reference electrode and a measuring apparatus using the same
JP2633281B2 (en) * 1988-02-10 1997-07-23 日本電気株式会社 Electrochemical sensor and manufacturing method thereof
US4933048A (en) * 1988-02-16 1990-06-12 I-Stat Corporation Reference electrode, method of making and method of using same
US5066383A (en) * 1988-10-27 1991-11-19 Terumo Kabushiki Kaisha Reference electrode, ion sensor and method of manufacturing the same
JPH02204847A (en) * 1989-02-02 1990-08-14 Nec Corp Cache memory device
US4891125A (en) * 1989-04-12 1990-01-02 Abbott Laboratories Reference electrode and method of making it
JPH082884B2 (en) * 1990-07-30 1996-01-17 ダイセル化学工業株式会社 1,3-Oxazin-4-one derivative, its production method and plant growth inhibitor
JPH05201811A (en) * 1992-01-29 1993-08-10 Daicel Chem Ind Ltd 2,3-dihydro-4h-1,3-oxazin-4-one derivative based herbicide

Also Published As

Publication number Publication date
DE69333218T2 (en) 2004-06-24
ES2210240T3 (en) 2004-07-01
EP0673506A1 (en) 1995-09-27
CA2150017C (en) 1999-08-10
EP0673506A4 (en) 1995-07-26
JP2625034B2 (en) 1997-06-25
AU4380593A (en) 1994-06-22
DE69333218D1 (en) 2003-10-30
EP0673506B1 (en) 2003-09-24
US5384031A (en) 1995-01-24
JPH08503553A (en) 1996-04-16
WO1994012869A1 (en) 1994-06-09

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