GB2263780A - A method for measuring the ion concentration of aqueous samples and an arrangement for carrying out the method - Google Patents

A method for measuring the ion concentration of aqueous samples and an arrangement for carrying out the method

Info

Publication number
GB2263780A
GB2263780A GB9305797A GB9305797A GB2263780A GB 2263780 A GB2263780 A GB 2263780A GB 9305797 A GB9305797 A GB 9305797A GB 9305797 A GB9305797 A GB 9305797A GB 2263780 A GB2263780 A GB 2263780A
Authority
GB
United Kingdom
Prior art keywords
sample
measuring
cell
ion
conditioning solution
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
GB9305797A
Other versions
GB2263780B (en
GB9305797D0 (en
Inventor
Torbjoern Anfaelt
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.)
Foss Analytical AB
Original Assignee
Foss Analytical 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 Foss Analytical AB filed Critical Foss Analytical AB
Publication of GB9305797D0 publication Critical patent/GB9305797D0/en
Publication of GB2263780A publication Critical patent/GB2263780A/en
Application granted granted Critical
Publication of GB2263780B publication Critical patent/GB2263780B/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
    • G01N27/416—Systems
    • G01N27/4166—Systems measuring a particular property of an electrolyte
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
    • G01N2035/00465—Separating and mixing arrangements
    • G01N2035/00534—Mixing by a special element, e.g. stirrer

Landscapes

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

Abstract

A method of determining the concentration of a given ion in an aqueous sample with the aid of an ion-selective electrode (4) and a reference electrode (5) placed in a measuring cell (3) by delivering the sample to the cell in an air-segmented form; effecting measurement with the electrodes; flushing the sample from the measuring cell subsequent to said measuring operation and replacing said sample with a conditioning solution (7) of known ion concentration; and immediately standardizing the electrode system, by measuring with the electrodes in the conditioning solution. A measuring arrangement including a measuring cell (3) with an ion-selective electrode (4) and a reference electrode (5) and constructed so that air bubbles in the sample delivered thereto will not come into contact with the active surfaces of the electrodes; intermittently working pumps (1, 2) for delivering air segmented sample solution and a conditioning solution (7) to the cell (3) and for evacuating the cell; and a sample storage loop (11) disposed between an inlet (19) to the cell and a tube (14) delivering the conditioning solution (7).
GB9305797A 1990-09-24 1993-03-16 A method for measuring the ion concentration of aqueous samples and an arrangement for carrying out the method Expired - Fee Related GB2263780B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE9003014A SE467074B (en) 1990-09-24 1990-09-24 SETTING TO MEET THE ION CONTENT IN WATER TESTS AND DEVICE BEFORE PERFORMING THE SETTING
PCT/SE1991/000637 WO1992005451A1 (en) 1990-09-24 1991-09-24 A method for measuring the ion concentration of aqueous samples and an arrangement for carrying out the method

Publications (3)

Publication Number Publication Date
GB9305797D0 GB9305797D0 (en) 1993-06-02
GB2263780A true GB2263780A (en) 1993-08-04
GB2263780B GB2263780B (en) 1995-01-11

Family

ID=20380420

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9305797A Expired - Fee Related GB2263780B (en) 1990-09-24 1993-03-16 A method for measuring the ion concentration of aqueous samples and an arrangement for carrying out the method

Country Status (3)

Country Link
GB (1) GB2263780B (en)
SE (1) SE467074B (en)
WO (1) WO1992005451A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB201003720D0 (en) * 2010-03-08 2010-04-21 Octens Bvba Ion-selective electrode
CN112485315A (en) * 2020-11-10 2021-03-12 西安西热水务环保有限公司 High-hardness wastewater scaling ion online monitoring system and method

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033680C2 (en) * 1979-09-10 1984-01-05 Olympus Optical Co., Ltd., Tokyo Dosing and piping system for devices for chemical analysis
US4797191A (en) * 1984-05-08 1989-01-10 Fresenius Ag Measuring device for determination of the activity or of the concentration of ions in solutions
US4798803A (en) * 1985-07-10 1989-01-17 The Dow Chemical Company Method for titration flow injection analysis
DK160268B (en) * 1981-11-20 1991-02-18 Bifok Ab DEVICE FOR SUPPLYING SAMPLING SOLUTION TO AN ANALYTICAL APPLIANCE ANALYSIS AND UNDERTAKING PROCEDURES TO APPLY SAMPLING SOLUTION TO THE ANALYSIS

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3033680C2 (en) * 1979-09-10 1984-01-05 Olympus Optical Co., Ltd., Tokyo Dosing and piping system for devices for chemical analysis
DK160268B (en) * 1981-11-20 1991-02-18 Bifok Ab DEVICE FOR SUPPLYING SAMPLING SOLUTION TO AN ANALYTICAL APPLIANCE ANALYSIS AND UNDERTAKING PROCEDURES TO APPLY SAMPLING SOLUTION TO THE ANALYSIS
US4797191A (en) * 1984-05-08 1989-01-10 Fresenius Ag Measuring device for determination of the activity or of the concentration of ions in solutions
US4798803A (en) * 1985-07-10 1989-01-17 The Dow Chemical Company Method for titration flow injection analysis

Also Published As

Publication number Publication date
GB2263780B (en) 1995-01-11
GB9305797D0 (en) 1993-06-02
WO1992005451A1 (en) 1992-04-02
SE9003014L (en) 1992-03-25
SE9003014D0 (en) 1990-09-24
SE467074B (en) 1992-05-18

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 19970924