ES2194916T3 - Metodo y dispositivo para medir la concentracion de una sustancia en una solucion. - Google Patents

Metodo y dispositivo para medir la concentracion de una sustancia en una solucion.

Info

Publication number
ES2194916T3
ES2194916T3 ES95926583T ES95926583T ES2194916T3 ES 2194916 T3 ES2194916 T3 ES 2194916T3 ES 95926583 T ES95926583 T ES 95926583T ES 95926583 T ES95926583 T ES 95926583T ES 2194916 T3 ES2194916 T3 ES 2194916T3
Authority
ES
Spain
Prior art keywords
solution
concentration
urea
measuring
substance
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.)
Expired - Lifetime
Application number
ES95926583T
Other languages
English (en)
Inventor
Raymond Edgson
Bo Olde
Lars-Fride Olsson
Jones Arfon Goodman
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.)
Gambro Lundia AB
Original Assignee
Gambro Lundia 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
Priority claimed from SE9402602A external-priority patent/SE512183C2/sv
Priority claimed from SE9402835A external-priority patent/SE9402835D0/xx
Priority claimed from SE9501315A external-priority patent/SE9501315D0/xx
Application filed by Gambro Lundia AB filed Critical Gambro Lundia AB
Application granted granted Critical
Publication of ES2194916T3 publication Critical patent/ES2194916T3/es
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12QMEASURING 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
    • C12Q1/00Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions
    • C12Q1/58Measuring or testing processes involving enzymes, nucleic acids or microorganisms; Compositions therefor; Processes of preparing such compositions involving urea or urease
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N27/00Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
    • G01N27/02Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance
    • G01N27/021Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating impedance before and after chemical transformation of the material
    • 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
    • G01N33/493Physical analysis of biological material of liquid biological material urine
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/17Nitrogen containing
    • Y10T436/171538Urea or blood urea nitrogen
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00Chemistry: analytical and immunological testing
    • Y10T436/25Chemistry: analytical and immunological testing including sample preparation

Landscapes

  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Immunology (AREA)
  • Wood Science & Technology (AREA)
  • Physics & Mathematics (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • Biotechnology (AREA)
  • Microbiology (AREA)
  • Biophysics (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Pathology (AREA)
  • Electrochemistry (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • Genetics & Genomics (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)
  • Investigating Or Analysing Biological Materials (AREA)
  • Measuring Or Testing Involving Enzymes Or Micro-Organisms (AREA)

Abstract

METODO Y DISPOSITIVO PARA MEDIR LA CONCENTRACION DE UREA O UNA SUSTANCIA SIMILAR, EN UNA SOLUCION COMPUESTA, PARTICULARMENTE UNA SOLUCION DE DIALISIS, MEDIANTE DESCOMPOSICION CATALITICA DE UREA MEDIANTE UREASA. SE MIDE LA CONDUCTIVIDAD DIFERENCIAL DE LA SOLUCION REACCIONADA Y NO REACCIONADA Y ES PROPORCIONAR A LA CONCENTRACION DE UREA. LA DESCOMPOSICION OCURRE DE ACUERDO CON LA REACCION: (()NH{SUB,2}()){SUB,2} CO + CO{SUB,2} + 3H{SUB,2}O -> 2NH{SUB,4}{SUP,+} + 2HCO{SUB,3}{SUP,-} (()5()). MEDIANTE LA ADICION (41, 60) DE GAS DE DIOXIDO DE CARBONO Y MEDIANTE CATALIZACION CON LA UREASA DE ENZIMA, LA REACCION ES DESPLAZADA A LA DERECHA, LO QUE SIGNIFICA QUE DICHA PROPORCIONALIDAD ES VALIDA DURANTE UN LARGO RANGO DE CONCENTRACIONES DE UREA, HASTA Y MAS DE 35 MM. LA ADICION DE GAS DE DIOXIDO DE CARBONO TAMBIEN ASEGURA UN VALOR DE PH SUFICIENTEMENTE BAJO EN LA SOLUCION CON EL FIN DE EVITAR LA PRECIPITACION DEL CARBONATO CALCICO.
ES95926583T 1994-07-29 1995-07-28 Metodo y dispositivo para medir la concentracion de una sustancia en una solucion. Expired - Lifetime ES2194916T3 (es)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9402602A SE512183C2 (sv) 1994-07-29 1994-07-29 Förfarande och anordning för mätning av koncentrationen av ett ämne i en lösning
SE9402835A SE9402835D0 (sv) 1994-08-24 1994-08-24 Förfarande och anordning för separering av gas
SE9501315A SE9501315D0 (sv) 1995-04-10 1995-04-10 Ureasensor

Publications (1)

Publication Number Publication Date
ES2194916T3 true ES2194916T3 (es) 2003-12-01

Family

ID=27355758

Family Applications (1)

Application Number Title Priority Date Filing Date
ES95926583T Expired - Lifetime ES2194916T3 (es) 1994-07-29 1995-07-28 Metodo y dispositivo para medir la concentracion de una sustancia en una solucion.

Country Status (10)

Country Link
US (2) US6114176A (es)
EP (2) EP1182264B1 (es)
JP (1) JP3616644B2 (es)
AT (2) ATE318929T1 (es)
AU (1) AU693233B2 (es)
BR (1) BR9508456A (es)
CA (1) CA2196161C (es)
DE (2) DE69534809T2 (es)
ES (1) ES2194916T3 (es)
WO (1) WO1996004401A1 (es)

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Also Published As

Publication number Publication date
JPH10504190A (ja) 1998-04-28
BR9508456A (pt) 1997-12-23
DE69534809T2 (de) 2006-08-10
JP3616644B2 (ja) 2005-02-02
CA2196161A1 (en) 1996-02-15
EP1182264B1 (en) 2006-03-01
EP1182264A2 (en) 2002-02-27
CA2196161C (en) 2007-12-04
DE69530986T2 (de) 2004-05-19
EP0772693B1 (en) 2003-06-04
AU693233B2 (en) 1998-06-25
ATE318929T1 (de) 2006-03-15
DE69534809D1 (de) 2006-04-27
US6521184B1 (en) 2003-02-18
US6114176A (en) 2000-09-05
EP0772693A1 (en) 1997-05-14
DE69530986D1 (de) 2003-07-10
WO1996004401A1 (en) 1996-02-15
ATE242338T1 (de) 2003-06-15
AU3090695A (en) 1996-03-04
EP1182264A3 (en) 2003-06-11

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