SE9402602L - 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 solutionInfo
- Publication number
- SE9402602L SE9402602L SE9402602A SE9402602A SE9402602L SE 9402602 L SE9402602 L SE 9402602L SE 9402602 A SE9402602 A SE 9402602A SE 9402602 A SE9402602 A SE 9402602A SE 9402602 L SE9402602 L SE 9402602L
- Authority
- SE
- Sweden
- Prior art keywords
- soln
- substance
- concentration
- measuring
- solution
- Prior art date
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)
- Wood Science & Technology (AREA)
- Zoology (AREA)
- Proteomics, Peptides & Aminoacids (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Biochemistry (AREA)
- Biophysics (AREA)
- Molecular Biology (AREA)
- General Engineering & Computer Science (AREA)
- Bioinformatics & Cheminformatics (AREA)
- Microbiology (AREA)
- Biotechnology (AREA)
- Genetics & Genomics (AREA)
- Biomedical Technology (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Hematology (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Urology & Nephrology (AREA)
- Emergency Medicine (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (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.
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 |
AT01120674T ATE318929T1 (en) | 1994-07-29 | 1995-07-28 | METHOD AND DEVICE FOR MEASURING THE CONCENTRATION OF A SUBSTANCE IN A SOLUTION |
US08/776,308 US6114176A (en) | 1994-07-29 | 1995-07-28 | Method 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 |
EP95926583A EP0772693B1 (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 |
AT95926583T ATE242338T1 (en) | 1994-07-29 | 1995-07-28 | METHOD AND DEVICE 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 |
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. |
DE69530986T DE69530986T2 (en) | 1994-07-29 | 1995-07-28 | METHOD AND DEVICE 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 |
JP50643596A JP3616644B2 (en) | 1994-07-29 | 1995-07-28 | Method and apparatus 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 SE9402602D0 (en) | 1994-07-29 |
SE9402602L true 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) |
-
1994
- 1994-07-29 SE SE9402602A patent/SE512183C2/en not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
SE512183C2 (en) | 2000-02-07 |
SE9402602D0 (en) | 1994-07-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
AU3090695A (en) | Method and device for measuring the concentration of a substance in a solution | |
FI842564A0 (en) | FOERFARANDE OCH ANORDNING FOER FRAMSTAELLNING AV GASFORMIGA AEMNEN GENOM NEDBRYTNING AV VAETSKOR. | |
ES2045114T3 (en) | ACID GAS SENSORS. | |
BR9205866A (en) | Denitrification process | |
ATE261399T1 (en) | METHOD FOR PRODUCING HYDROGEN Cyanide | |
ATE17111T1 (en) | PROCESS FOR CARRYING OUT CHEMICAL REACTIONS INVOLVING ATOMIC HYDROGEN. | |
IL76296A0 (en) | Process and an apparatus for determining and monitoring hydrogen peroxide concentrations in liquid reaction media | |
JPS57106672A (en) | Method of decomposing trace components at one time in melamine synthesis reaction waste gas | |
SE9402602D0 (en) | Method and apparatus for measuring the concentration of a substance in a solution | |
ES2130694T3 (en) | TREATMENT OF A CHEMICAL PRODUCT. | |
JPS5774097A (en) | Measurement of creatinine and device therefor | |
DE60003314D1 (en) | MONITORING HYDROGEN PEROXIDE | |
JPS5788358A (en) | Method and apparatus for measuring urea | |
JPS5758895A (en) | Analytical method of creatinine and apparatus | |
FI842431A0 (en) | FOERFARANDE FOER FRAMSTAELLNING AV ISOBUTYRYLFLUORID. | |
JPS55164349A (en) | Fixing enzyme film for enzyme electrode | |
Takahashi et al. | Influence of initial concentrations on DeNO sub (x) process by ammonia addition | |
JPS5764160A (en) | Method and apparatus for measuring urea | |
JPS56128452A (en) | Highly sensitive measuring method for concentration of hydrogen peroxide | |
Montieth et al. | Industrial waste carbon sources for biological denitrification | |
Nigam et al. | Trace Element Determination in Environmental Pollution A Kinetic Method for Cobalt Estimation by a Rapid Mixing Procedure | |
JPS5664783A (en) | Apparatus for analyzing enzyme activity | |
JPS57163486A (en) | Process for enzyme reaction | |
ATE374164T1 (en) | PRODUCTION OF DINITROGEN MONOXIDE | |
JPS5664782A (en) | Apparatus for analyzing enzyme activity |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
NUG | Patent has lapsed |