AU2003250037A1 - Ion strength sensor - Google Patents

Ion strength sensor

Info

Publication number
AU2003250037A1
AU2003250037A1 AU2003250037A AU2003250037A AU2003250037A1 AU 2003250037 A1 AU2003250037 A1 AU 2003250037A1 AU 2003250037 A AU2003250037 A AU 2003250037A AU 2003250037 A AU2003250037 A AU 2003250037A AU 2003250037 A1 AU2003250037 A1 AU 2003250037A1
Authority
AU
Australia
Prior art keywords
sensor
ion strength
determining
medium
strength sensor
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.)
Abandoned
Application number
AU2003250037A
Inventor
Stefan H. Bossmann
Frank Zahn
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.)
Individual
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 AU2003250037A1 publication Critical patent/AU2003250037A1/en
Abandoned legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1853—Hardness of water

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
  • Secondary Cells (AREA)
  • Conductive Materials (AREA)
  • Glass Compositions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Physical Vapour Deposition (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

A sensor (1), for determining the ion strength of divalent or higher cations, in particular for determining the hardness of water, should permit a direct and continuous determination of the strength of said ions with a particularly low complexity. According to the invention, the sensor (1) is introduced into a medium (2) with a sensor unit (8) which may be brought into contact with the medium (2), which comprises a copolymer (14) as sensor material, including N-isopropylacrylamide (NIPAM) and a complex-forming monomer (KMX) with at least one carboxylic acid group, where the general formula NIPAMm KMXn with m = 1 and n = 1 is valid.
AU2003250037A 2002-08-21 2003-07-11 Ion strength sensor Abandoned AU2003250037A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE10239204A DE10239204B3 (en) 2002-08-21 2002-08-21 Ionic strength sensor
DE10239204.8 2002-08-21
PCT/EP2003/007507 WO2004027414A1 (en) 2002-08-21 2003-07-11 Ion strength sensor

Publications (1)

Publication Number Publication Date
AU2003250037A1 true AU2003250037A1 (en) 2004-04-08

Family

ID=32009803

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2003250037A Abandoned AU2003250037A1 (en) 2002-08-21 2003-07-11 Ion strength sensor

Country Status (6)

Country Link
EP (1) EP1532436B1 (en)
AT (1) ATE424557T1 (en)
AU (1) AU2003250037A1 (en)
DE (2) DE10239204B3 (en)
ES (1) ES2323696T3 (en)
WO (1) WO2004027414A1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102015223371A1 (en) * 2015-11-26 2017-06-01 BSH Hausgeräte GmbH Sensor device for determining a property of a liquid, method for operating the sensor device and water-conducting household appliance with the sensor device
EP3308765B1 (en) * 2016-10-17 2022-07-13 Mühlbauer Technology GmbH Radical polymerizable compound
DE102017202777A1 (en) * 2017-02-21 2018-08-23 BSH Hausgeräte GmbH Water-conducting household appliance and method for operating a water-conducting household appliance

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2508637C3 (en) * 1975-02-28 1979-11-22 Max-Planck-Gesellschaft Zur Foerderung Der Wissenschaften E.V., 3400 Goettingen Arrangement for the optical measurement of blood gases
DE2632556C2 (en) * 1976-07-20 1984-09-20 Max Planck Gesellschaft zur Förderung der Wissenschaften e.V., 3400 Göttingen Light feed for a device for the optical measurement of substance concentrations
CA1141275A (en) * 1978-11-08 1983-02-15 Richard D. Falb Composition, test device and method for determining the ionic strength or specific gravity of a liquid sample
DE3250066C2 (en) * 1982-06-14 1994-04-28 Max Planck Gesellschaft Measuring ion strength of electrolyte
AT381172B (en) * 1983-08-26 1986-09-10 Avl Verbrennungskraft Messtech METHOD FOR DETERMINING THE ION STRENGTH OF AN ELECTROLYTE SOLUTION AND MEASURING DEVICE FOR IMPLEMENTING THE METHOD
EP0406334A4 (en) * 1988-07-11 1991-11-13 Nellcor Incorporated Hydrogel dye film sensing elements and their preparation
EP0906566A1 (en) * 1996-06-12 1999-04-07 Novartis AG OPTICAL SENSOR SYSTEM FOR pH DETERMINATION INDEPENDENTLY OF THE ION STRENGTH USING FLUORESCEIN BOUND TO A POLYMER VIA A URETHANE AND/OR UREA GROUP
US6180288B1 (en) * 1997-03-21 2001-01-30 Kimberly-Clark Worldwide, Inc. Gel sensors and method of use thereof
DE10061140A1 (en) * 2000-12-08 2002-06-13 Merck Patent Gmbh Methods and means for determining total hardness

Also Published As

Publication number Publication date
DE50311246D1 (en) 2009-04-16
ES2323696T3 (en) 2009-07-23
ATE424557T1 (en) 2009-03-15
EP1532436B1 (en) 2009-03-04
WO2004027414A1 (en) 2004-04-01
EP1532436A1 (en) 2005-05-25
DE10239204B3 (en) 2004-06-09

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase