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GB816815A - Apparatus for analyzing a liquid for determining the presence therein of carbon dioxide or other substance capable of being liberated in gaseous form - Google Patents

Apparatus for analyzing a liquid for determining the presence therein of carbon dioxide or other substance capable of being liberated in gaseous form

Info

Publication number
GB816815A
GB816815A GB27375/57A GB2737557A GB816815A GB 816815 A GB816815 A GB 816815A GB 27375/57 A GB27375/57 A GB 27375/57A GB 2737557 A GB2737557 A GB 2737557A GB 816815 A GB816815 A GB 816815A
Authority
GB
United Kingdom
Prior art keywords
liquid
tube
carbon dioxide
pict
turntable
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
GB27375/57A
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.)
Technicon International Ltd
Original Assignee
Technicon International Ltd
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 Technicon International Ltd filed Critical Technicon International Ltd
Publication of GB816815A publication Critical patent/GB816815A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • G01N7/14—Analysing materials by measuring the pressure or volume of a gas or vapour by allowing the material to emit a gas or vapour, e.g. water vapour, and measuring a pressure or volume difference
    • 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
    • G01N33/49—Blood
    • G01N33/4925—Blood measuring blood gas content, e.g. O2, CO2, HCO3
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N7/00—Analysing materials by measuring the pressure or volume of a gas or vapour
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T436/00—Chemistry: analytical and immunological testing
    • Y10T436/11—Automated chemical analysis
    • Y10T436/117497—Automated chemical analysis with a continuously flowing sample or carrier stream
    • Y10T436/118339—Automated chemical analysis with a continuously flowing sample or carrier stream with formation of a segmented stream

Landscapes

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

Abstract

<PICT:0816815/III/1> <PICT:0816815/III/2> <PICT:0816815/III/3> An apparatus for determining the presence of carbon dioxide, or other substance capable of being liberated in gaseous form, in a liquid, by the addition of a reagent to said liquid, comprises a reaction chamber 34 through which liquid and reagent are pumped in predetermined proportions by means of pump 18, pressure of said chamber being reduced to cause the ready liberation of said gas from the liquid in proportion to the quantity thereof in said liquid while the change in pressure is measured directly by means of the monometer device 38 or by means of electrical means 58 and the pressure is related to the proportion of the substance in the liquid under examination. The liquid under test, e.g. blood plasma, and the reagent are usually supplied from bottles 26 and 28, but, as shown in Figs. 4 and 5, the feeding flask 26 for the liquid under examination may be replaced by a device for supplying a plurality of different samples automatically to the analyser. Distilled water may be introduced into tube 12 by the feed device to space these samples from each other as they flow through tube 12, the turntable 6 being rotated at suitable speed. Samples are picked up by means of tube 70 and transmitted to tube 12. When the turntable is to be used it is advisable to make provision to compensate for loss of gas such as CO2. Therefore an atmosphere containing a quantity of carbon dioxide comparable with the quantity thereof in the atmosphere surrounding sample is supplied to a hood 76 made of plastic material by means of a tube 78 and the gas mixture flows continuously at a low rate in and out of the hood passing out through the slight clearance between the skirt 84 of the hood of the peripheral edge 86 of the turntable 64.
GB27375/57A 1956-09-26 1957-08-30 Apparatus for analyzing a liquid for determining the presence therein of carbon dioxide or other substance capable of being liberated in gaseous form Expired GB816815A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US612299A US2946665A (en) 1956-09-26 1956-09-26 Method and means for the determination of carbon dioxide in biological fluids

Publications (1)

Publication Number Publication Date
GB816815A true GB816815A (en) 1959-07-22

Family

ID=24452583

Family Applications (1)

Application Number Title Priority Date Filing Date
GB27375/57A Expired GB816815A (en) 1956-09-26 1957-08-30 Apparatus for analyzing a liquid for determining the presence therein of carbon dioxide or other substance capable of being liberated in gaseous form

Country Status (4)

Country Link
US (1) US2946665A (en)
DE (1) DE1236240B (en)
FR (1) FR1182716A (en)
GB (1) GB816815A (en)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3118736A (en) * 1959-06-30 1964-01-21 Fisher Scientific Co Method for blood gas analysis
NL264663A (en) * 1960-05-12
BE630594A (en) * 1962-04-05
US3472627A (en) * 1965-04-07 1969-10-14 Ceskoslovenska Akademie Ved Method and apparatus for separating number of samples displaced in a tubing of small internal diameter
US3443904A (en) * 1965-09-27 1969-05-13 Perkin Elmer Corp Blood gas analysis
DE1801684B2 (en) * 1967-10-09 1971-12-23 Czeskoslovenska Akademie Ved., Prag DEVICE FOR CARRYING OUT A CHEMICAL REACTION OF A SUBSTANCE PRESENT IN THE FORM OF INDIVIDUAL CONCENTRATION ZONES IN A CARRIER MEDIUM
US3507146A (en) * 1968-02-09 1970-04-21 Webb James E Method and system for respiration analysis
BE795797A (en) * 1972-02-22 1973-06-18 American Hospital Supply Corp METHOD AND APPARATUS FOR DETERMINING THE CARBON ANHYDRIDE CONTENT OF BLOOD SAMPLES
US3867097A (en) * 1973-05-04 1975-02-18 Us Health Measurement of carbon dioxide

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE233529C (en) *
DE239886C (en) *
US1742871A (en) * 1926-11-29 1930-01-07 Creamery Package Mfg Co Milk-pasteurizing apparatus
US1731563A (en) * 1927-07-06 1929-10-15 Humboldt Sulphur Company Method and apparatus for extracting sulphur
US1957808A (en) * 1929-10-09 1934-05-08 Leeds & Northrup Co Fluid analyzing method and apparatus
US2013727A (en) * 1932-07-22 1935-09-10 Du Pont Method and apparatus for measurement and control of gaseous mixtures
US2439770A (en) * 1945-01-29 1948-04-13 Harold A Brown Electrically indicating liquid filled manometer
US2707964A (en) * 1950-09-12 1955-05-10 Paul S Monroe Measurement and control of the compositions of flowing streams of fluid mixtures
US2758476A (en) * 1952-12-03 1956-08-14 Honeywell Regulator Co Electrical apparatus for measuring pressure
US2797149A (en) * 1953-01-08 1957-06-25 Technicon International Ltd Methods of and apparatus for analyzing liquids containing crystalloid and non-crystalloid constituents
US2773747A (en) * 1953-11-19 1956-12-11 Arthur H Thomas Company Manometric apparatus for determining the gas content of liquids

Also Published As

Publication number Publication date
US2946665A (en) 1960-07-26
DE1236240B (en) 1967-03-09
FR1182716A (en) 1959-06-29

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