GB1301535A - - Google Patents

Info

Publication number
GB1301535A
GB1301535A GB1301535DA GB1301535A GB 1301535 A GB1301535 A GB 1301535A GB 1301535D A GB1301535D A GB 1301535DA GB 1301535 A GB1301535 A GB 1301535A
Authority
GB
United Kingdom
Prior art keywords
conductivity
probe
june
electro
electrodes
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
Application number
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 filed Critical
Publication of GB1301535A publication Critical patent/GB1301535A/en
Expired legal-status Critical Current

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Classifications

    • 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
    • C12Q1/001—Enzyme electrodes
    • C12Q1/005—Enzyme electrodes involving specific analytes or enzymes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Proteomics, Peptides & Aminoacids (AREA)
  • Zoology (AREA)
  • Engineering & Computer Science (AREA)
  • Immunology (AREA)
  • Biochemistry (AREA)
  • Microbiology (AREA)
  • Molecular Biology (AREA)
  • Analytical Chemistry (AREA)
  • Biotechnology (AREA)
  • Physics & Mathematics (AREA)
  • Biophysics (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (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)
  • Apparatus Associated With Microorganisms And Enzymes (AREA)

Abstract

1301535 Electro-chemical analysis: voltage measuring MILES LABORATORIES Inc 22 June 1970 [23 June 1969 20 April 1970] 30230/70 Headings G1N and G1U [Also in Division B1] An electro-chemical analysis probe for determining the amount of urea in a liquid comprises a cavity 18 filled with a polyacrylamide gel containing the enzyme urease and a pair of platinum conductivity electrodes 12, 13. An external semipermeable nylon or regenerated cellulose membrane (not shown) may cover the gel. The probe body may be of polystyrene. An alternative construction is described, Fig.2 (not shown). The probe may be used for in vivo measurements on blood. In use, the conductivity and the rate of change of conductivity between the electrodes are recorded on a dual channel chart recorder, Fig.3 (not shown). Fig.4 shows a circuit for obtaining the rate signal. (For figures see next page)
GB1301535D 1969-06-23 1970-06-22 Expired GB1301535A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US83565869A 1969-06-23 1969-06-23
US3032970A 1970-04-20 1970-04-20

Publications (1)

Publication Number Publication Date
GB1301535A true GB1301535A (en) 1972-12-29

Family

ID=26705924

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1301535D Expired GB1301535A (en) 1969-06-23 1970-06-22

Country Status (8)

Country Link
AU (1) AU1662170A (en)
BE (1) BE752408A (en)
DE (1) DE2030713A1 (en)
ES (1) ES381022A1 (en)
FR (1) FR2047047B1 (en)
GB (1) GB1301535A (en)
NL (1) NL7009119A (en)
ZA (1) ZA704115B (en)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2282114A1 (en) * 1974-08-14 1976-03-12 Ouest Sa Comptoir Scient Tec Enzymatic analysis - for chemical and biological substrates, by electrical conductivity differences
JPS5460996A (en) * 1977-10-22 1979-05-16 Mitsubishi Chem Ind Method of measuring amount of sugar
GB8406955D0 (en) * 1984-03-16 1984-04-18 Serono Diagnostics Ltd Assay
GB8606824D0 (en) * 1986-03-19 1986-04-23 Univ Strathclyde Biochemical detector

Also Published As

Publication number Publication date
FR2047047A1 (en) 1971-03-12
AU1662170A (en) 1971-12-23
NL7009119A (en) 1970-12-28
ES381022A1 (en) 1973-04-16
DE2030713A1 (en) 1971-01-14
ZA704115B (en) 1971-03-31
FR2047047B1 (en) 1973-01-12
BE752408A (en) 1970-12-23

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees