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SE9402602D0 - Method and apparatus for measuring the concentration of a substance in a solution - Google Patents

Method and apparatus for measuring the concentration of a substance in a solution

Info

Publication number
SE9402602D0
SE9402602D0 SE9402602A SE9402602A SE9402602D0 SE 9402602 D0 SE9402602 D0 SE 9402602D0 SE 9402602 A SE9402602 A SE 9402602A SE 9402602 A SE9402602 A SE 9402602A SE 9402602 D0 SE9402602 D0 SE 9402602D0
Authority
SE
Sweden
Prior art keywords
soln
substance
concentration
measuring
solution
Prior art date
Application number
SE9402602A
Other languages
Swedish (sv)
Other versions
SE9402602L (en
SE512183C2 (en
Inventor
Lars-Fride Olsson
Bo Olde
Original Assignee
Gambro 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 Gambro Ab filed Critical Gambro Ab
Priority to SE9402602A priority Critical patent/SE512183C2/en
Publication of SE9402602D0 publication Critical patent/SE9402602D0/en
Priority to DE69534809T priority patent/DE69534809T2/en
Priority to DE69530986T priority patent/DE69530986T2/en
Priority to BR9508456A priority patent/BR9508456A/en
Priority to US08/776,308 priority patent/US6114176A/en
Priority to EP01120674A priority patent/EP1182264B1/en
Priority to PCT/SE1995/000888 priority patent/WO1996004401A1/en
Priority to EP95926583A priority patent/EP0772693B1/en
Priority to JP50643596A priority patent/JP3616644B2/en
Priority to AT01120674T priority patent/ATE318929T1/en
Priority to AU30906/95A priority patent/AU693233B2/en
Priority to CA002196161A priority patent/CA2196161C/en
Priority to ES95926583T priority patent/ES2194916T3/en
Priority to AT95926583T priority patent/ATE242338T1/en
Publication of SE9402602L publication Critical patent/SE9402602L/en
Publication of SE512183C2 publication Critical patent/SE512183C2/en
Priority to US09/589,011 priority patent/US6521184B1/en

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
    • G01N33/48—Biological material, e.g. blood, urine; Haemocytometers
    • G01N33/483—Physical analysis of biological material
    • G01N33/487—Physical analysis of biological material of liquid biological material
    • G01N33/48742—Determining urea by measuring the volume of a gas
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/54—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving glucose or galactose
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/58—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving urea or urease
    • C—CHEMISTRY; METALLURGY
    • C12—BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12Q—MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEIC ACIDS OR MICROORGANISMS; COMPOSITIONS OR TEST PAPERS THEREFOR; PROCESSES OF PREPARING SUCH COMPOSITIONS; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL OR ENZYMOLOGICAL PROCESSES
    • C12Q1/00—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/60—Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving cholesterol
    • 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
    • G01N27/02—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Zoology (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Immunology (AREA)
  • Analytical Chemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Molecular Biology (AREA)
  • Biophysics (AREA)
  • Biomedical Technology (AREA)
  • Microbiology (AREA)
  • Biotechnology (AREA)
  • Genetics & Genomics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Pathology (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • Hematology (AREA)
  • Urology & Nephrology (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Emergency Medicine (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)

Abstract

The concn. of urea (or a similar substance) is measured in a composite soln. by a catalytic reaction with urease in a reactor column (10). The differential conductivity between reacted and unreacted soln. is measured to provide an indication of the urea concn. in the soln.. Carbon dioxide is added to the soln. which contains hydrogen carbonate ions, upstream of the column. An appts. for carrying out the process is also claimed.
SE9402602A 1994-07-29 1994-07-29 Measuring concn. of urea etc. in composite fluid e.g. dialysis fluid SE512183C2 (en)

Priority Applications (15)

Application Number Priority Date Filing Date Title
SE9402602A SE512183C2 (en) 1994-07-29 1994-07-29 Measuring concn. of urea etc. in composite fluid e.g. dialysis fluid
AT95926583T ATE242338T1 (en) 1994-07-29 1995-07-28 METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF A SUBSTANCE IN A SOLUTION
PCT/SE1995/000888 WO1996004401A1 (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
JP50643596A JP3616644B2 (en) 1994-07-29 1995-07-28 Method and apparatus for measuring the concentration of a substance in a solution
BR9508456A BR9508456A (en) 1994-07-29 1995-07-28 Process and device for measuring the concentration of urea or a similar substance in a composite solution
US08/776,308 US6114176A (en) 1994-07-29 1995-07-28 Method for measuring the concentration of a substance in a solution
EP01120674A EP1182264B1 (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
DE69534809T DE69534809T2 (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
EP95926583A EP0772693B1 (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
DE69530986T DE69530986T2 (en) 1994-07-29 1995-07-28 METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF A SUBSTANCE IN A SOLUTION
AT01120674T ATE318929T1 (en) 1994-07-29 1995-07-28 METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF A SUBSTANCE IN A SOLUTION
AU30906/95A AU693233B2 (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
CA002196161A CA2196161C (en) 1994-07-29 1995-07-28 Method and device for measuring the concentration of a substance in a solution
ES95926583T ES2194916T3 (en) 1994-07-29 1995-07-28 METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF A SUBSTANCE IN A SOLUTION.
US09/589,011 US6521184B1 (en) 1994-07-29 2000-06-07 Apparatus for measuring a decomposable compound in solution

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9402602A SE512183C2 (en) 1994-07-29 1994-07-29 Measuring concn. of urea etc. in composite fluid e.g. dialysis fluid

Publications (3)

Publication Number Publication Date
SE9402602D0 true SE9402602D0 (en) 1994-07-29
SE9402602L SE9402602L (en) 1996-01-30
SE512183C2 SE512183C2 (en) 2000-02-07

Family

ID=20394825

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9402602A SE512183C2 (en) 1994-07-29 1994-07-29 Measuring concn. of urea etc. in composite fluid e.g. dialysis fluid

Country Status (1)

Country Link
SE (1) SE512183C2 (en)

Also Published As

Publication number Publication date
SE9402602L (en) 1996-01-30
SE512183C2 (en) 2000-02-07

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Legal Events

Date Code Title Description
NUG Patent has lapsed