GB2012435A - Electrochemical Measuring System - Google Patents

Electrochemical Measuring System

Info

Publication number
GB2012435A
GB2012435A GB7900370A GB7900370A GB2012435A GB 2012435 A GB2012435 A GB 2012435A GB 7900370 A GB7900370 A GB 7900370A GB 7900370 A GB7900370 A GB 7900370A GB 2012435 A GB2012435 A GB 2012435A
Authority
GB
United Kingdom
Prior art keywords
electrode
electrode segments
cell
potential
measuring system
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
GB7900370A
Other versions
GB2012435B (en
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.)
Magellan Diagnostics Inc
Original Assignee
Environmental Sciences Associates Inc
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
Priority claimed from US05/968,060 external-priority patent/US4233031A/en
Application filed by Environmental Sciences Associates Inc filed Critical Environmental Sciences Associates Inc
Publication of GB2012435A publication Critical patent/GB2012435A/en
Application granted granted Critical
Publication of GB2012435B publication Critical patent/GB2012435B/en
Expired legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/48Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483Physical analysis of biological material
    • G01N33/487Physical analysis of biological material of liquid biological material
    • G01N33/49Blood
    • G01N33/492Determining multiple analytes

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Hematology (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • Urology & Nephrology (AREA)
  • Ecology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Biophysics (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

An electrochemical measuring system which determines selected substances in a sample solution is provided. The system includes a cell which is constructed for simultaneous measurement on at least two electrodes of at least two electrolytic potentials with reference to a reference potential. In a preferred form the cell comprises a hollow, cylindrical body formed of an electrically insulating material. The electrode is open at least at one end and has a generally smooth cylindrical inner surface. A plurality of electrically discrete active electrode segments are mounted on the inner surface of the electrode with their active surfaces substantially flush with the generally smooth cylindrical inner surface. Completing the electrochemical measuring system are a stirring means for creating a relatively high degree of mixing adjacent the electrode active surfaces, means for charging liquid samples to the cell, and means connecting at least two of the electrically discrete active electrode segments to different electrical potentials. In use a sample to be tested is charged to the cell, and stirring is commenced. One of the electrode segments is held at a potential at which a selected substance of interest and also one or more interfering substances responds, while another of the electrode segments is held at a potential at which only the interfering substances respond. The presence of a substance of interest can be determined by subtracting the signals from the one and another electrode segments, and its quantity determined by integrating the signal difference. <IMAGE>
GB7900370A 1978-01-11 1979-01-05 Electrochemical testing system Expired GB2012435B (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US86865478A 1978-01-11 1978-01-11
US05/968,060 US4233031A (en) 1978-12-11 1978-12-11 Electrochemical testing system and method

Publications (2)

Publication Number Publication Date
GB2012435A true GB2012435A (en) 1979-07-25
GB2012435B GB2012435B (en) 1982-10-27

Family

ID=27128066

Family Applications (2)

Application Number Title Priority Date Filing Date
GB8017911A Expired GB2045946B (en) 1978-01-11 1979-01-05 Electrochemical analysis method
GB7900370A Expired GB2012435B (en) 1978-01-11 1979-01-05 Electrochemical testing system

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GB8017911A Expired GB2045946B (en) 1978-01-11 1979-01-05 Electrochemical analysis method

Country Status (5)

Country Link
JP (1) JPS5952981B2 (en)
CA (1) CA1138043A (en)
DE (1) DE2900720A1 (en)
FR (2) FR2422948A1 (en)
GB (2) GB2045946B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4404065A (en) * 1980-01-14 1983-09-13 Enviromental Sciences Associates, Inc. Electrochemical detection system and method of analysis
JPS57110953A (en) * 1980-12-27 1982-07-10 Yanagimoto Seisakusho:Kk Multielectrode voltammetry detector
JPS5834355A (en) * 1981-08-25 1983-02-28 Yanagimoto Seisakusho:Kk Twin electrode type voltammetry detection system

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3556950A (en) * 1966-07-15 1971-01-19 Ibm Method and apparatus for automatic electrochemical analysis
NL6816450A (en) * 1968-11-19 1970-05-21
US3755125A (en) * 1971-01-14 1973-08-28 Envirometrics Inc Electrochemical gas analyzer
GB1460892A (en) * 1973-01-19 1977-01-06 Malcom Ellis Ltd Apparatus for m'asuring the electrical conductivity of a liquor sample
DE2339481C3 (en) * 1973-08-03 1979-12-06 Siemens Ag, 1000 Berlin Und 8000 Muenchen Electric probe for use in electrically conductive liquids
DE2652970C3 (en) * 1976-11-22 1979-09-06 Hartwig Ing.(Grad.) 2409 Scharbeutz Beyersdorf Ionization fire detectors
GB2005418B (en) * 1977-07-26 1982-04-21 Searle & Co Electrochemical sensor system

Also Published As

Publication number Publication date
CA1138043A (en) 1982-12-21
FR2422948B1 (en) 1984-03-30
FR2431699A1 (en) 1980-02-15
FR2431699B1 (en) 1984-02-24
DE2900720A1 (en) 1979-07-12
GB2012435B (en) 1982-10-27
JPS5952981B2 (en) 1984-12-22
GB2045946B (en) 1982-11-24
DE2900720C2 (en) 1989-06-01
FR2422948A1 (en) 1979-11-09
JPS54130090A (en) 1979-10-09
GB2045946A (en) 1980-11-05

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Legal Events

Date Code Title Description
PE20 Patent expired after termination of 20 years

Effective date: 19990104