DE29780440U1 - Carbon isotope analyzer - Google Patents

Carbon isotope analyzer

Info

Publication number
DE29780440U1
DE29780440U1 DE29780440U DE29780440U DE29780440U1 DE 29780440 U1 DE29780440 U1 DE 29780440U1 DE 29780440 U DE29780440 U DE 29780440U DE 29780440 U DE29780440 U DE 29780440U DE 29780440 U1 DE29780440 U1 DE 29780440U1
Authority
DE
Germany
Prior art keywords
unit
carbon isotope
isotope analyzer
analyzer according
sample
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
DE29780440U
Other languages
German (de)
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.)
FISCHER ANALYSEN INSTR GmbH
Original Assignee
FISCHER ANALYSEN INSTR GmbH
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 FISCHER ANALYSEN INSTR GmbH filed Critical FISCHER ANALYSEN INSTR GmbH
Publication of DE29780440U1 publication Critical patent/DE29780440U1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • 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
    • G01N33/497Physical analysis of biological material of gaseous biological material, e.g. breath
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
    • G01N21/3518Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/37Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using pneumatic detection
    • GPHYSICS
    • G01MEASURING; TESTING
    • G01NINVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2201/00Features of devices classified in G01N21/00
    • G01N2201/02Mechanical
    • G01N2201/024Modular construction
    • 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
    • G01N33/0004Gaseous mixtures, e.g. polluted air
    • G01N33/0009General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036Specially adapted to detect a particular component
    • G01N33/004Specially adapted to detect a particular component for CO, CO2

Description

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßt The description text was not recorded electronically  

Der Beschreibungstext wurde nicht elektronisch erfaßtThe description text was not recorded electronically

Claims (11)

1. Kohlenstoffisotopenanalysator, zur Bestimmung des Verhältnisses der stabilen Isotope 12C und 13C im CO2 des Atemgases, bestehend aus einem nichtdispersiven Infrarotspektrometer (1), einem Gasmanagementsystem (2), einer digitalen E/A-Einheit (3), einer Bus-Schnittstelle (4) und einer externen PC-Einheit (5) mit einer Bediensoftware (6) dadurch gekennzeichnet, daß das nichtdispersive Infrarotspektrometer (1) und die digitale E/A-Einheit (3) ein im Gasmanangementsystem (2) integriertes Probeneinlaßsystem (7) und ein Probenkontrollsystem (8) ansteuern, daß das nichtdispersive Infrarotspektrometer (1), das Gasmanagementsystem (2), die digitale E/A-Einheit (3) und die Bus-Schnittstelle (4) modulartig in einem Gehäuse angeordnet und über ein Kabel mit der externen PC-Einheit (5) verbunden sind, daß jedes Modul mit einem eigenen Microcontroller (9) ausgestattet ist und daß die Microcontroller (9) über die Bus-Schnittstelle (4) mit der externen PC-Einheit (5) kommunizieren.1. Carbon isotope analyzer, for determining the ratio of the stable isotopes 12 C and 13 C in the CO 2 of the breathing gas, consisting of a non-dispersive infrared spectrometer ( 1 ), a gas management system ( 2 ), a digital I / O unit ( 3 ), a bus Interface ( 4 ) and an external PC unit ( 5 ) with operating software ( 6 ), characterized in that the non-dispersive infrared spectrometer ( 1 ) and the digital I / O unit ( 3 ) have a sample inlet system ( 2 ) integrated in the gas management system ( 2 ) 7 ) and a sample control system ( 8 ) to control that the non-dispersive infrared spectrometer ( 1 ), the gas management system ( 2 ), the digital I / O unit ( 3 ) and the bus interface ( 4 ) are arranged in modules in a housing and via one Cables are connected to the external PC unit ( 5 ), that each module is equipped with its own microcontroller ( 9 ) and that the microcontroller ( 9 ) via the bus interface ( 4 ) with the external NEN PC unit ( 5 ) communicate. 2. Kohlenstoffisotopenanalysator nach Anspruch 1, dadurch gekennzeichnet, daß das nichtdispersive Infrarotspektrometer (1) mit einem Meßmodul (1') ausgestattet ist, in dem der Microcontroller (9) integriert ist und daß das nichtdispersive Infrarotspektrometer (1) mit einem auf den Meßprozeß optimierten Thermostaten (1") ausgestattet und gasdicht abgeschlossen ist.2. Carbon isotope analyzer according to claim 1, characterized in that the non-dispersive infrared spectrometer ( 1 ) is equipped with a measuring module ( 1 ') in which the microcontroller ( 9 ) is integrated and that the non-dispersive infrared spectrometer ( 1 ) with an optimized for the measuring process Thermostats ( 1 ") and gas-tight. 3. Kohlenstoffisotopenanalysator nach Anspruch 1, dadurch gekennzeichnet, daß in das Gasmanagementsystem (2) eine Dosier- und Kreislaufeinheit (2') und eine Spül- und Nullgaseinheit (2") integriert sind, wobei die Dosier- und Kreislaufeinheit (2') aus dem Probeneinlaß-System (7) und dem Probenkontrollsystem (8) gebildet ist. 3. Carbon isotope analyzer according to claim 1, characterized in that in the gas management system ( 2 ) a dosing and circulation unit ( 2 ') and a flushing and zero gas unit ( 2 ") are integrated, the dosing and circulation unit ( 2 ') from the sample inlet system ( 7 ) and the sample control system ( 8 ) is formed. 4. Kohlenstoffisotopenanalysator nach Anspruch 3, dadurch gekennzeichnet, daß das Probeneinlaß-System (7), aus einem Anschlußstutzen (7'), einem Ventil (7") und einem Probenerkennungsmodul (7''') besteht, daß acht Probeneinlaß- Systeme (7) installiert sind, daß die Anzahl der Probeneinlaß- Systeme (7) erweiterbar ist und, daß die integrierte Dosier- und Kreislaufeinheit (2') und die Spül- und Nullgaseinheit (2") durch Variation der Dosierzeit die freie Wählbarkeit der CO2- Konzentration innerhalb der Meßbereichsgrenzen des Meßmoduls (1') realisieren und der Konzentrationsausgleich in den Meßküvetten durch die Kreislaufführung des Meßgases erreichbar ist.4. Carbon isotope analyzer according to claim 3, characterized in that the sample inlet system ( 7 ) consists of a connection piece ( 7 '), a valve ( 7 ") and a sample detection module ( 7 "") that eight sample inlet systems ( 7 ) are installed, that the number of sample inlet systems ( 7 ) can be expanded and that the integrated metering and circulation unit ( 2 ') and the flushing and zero gas unit ( 2 ") by varying the metering time the free choice of CO 2 - Realize the concentration within the measuring range limits of the measuring module ( 1 ') and the concentration compensation in the measuring cuvettes can be achieved by circulating the measuring gas. 5. Kohlenstoffisotopenanalysator nach Anspruch 3, dadurch gekennzeichnet, daß das Probeneinlaß-System (7) mit dem Probenkontrollsystem (8) gekoppelt ist und die Informationen der Probenerkennungsmodule (7''') zwischen dem Probenkontrollsystem (8) und der digitalen E/A- Einheit (3) austauscht.5. Carbon isotope analyzer according to claim 3, characterized in that the sample inlet system ( 7 ) with the sample control system ( 8 ) is coupled and the information of the sample detection modules ( 7 ''') between the sample control system ( 8 ) and the digital I / O Unit ( 3 ) replaced. 6. Kohlenstoffisotopenanalysator nach Anspruch 3, dadurch gekennzeichnet, daß die integrierte Dosier- und Kreislaufeinheit (2') und die Spül- und Nullgaseinheit (2") die freie Wählbarkeit der CO2-Konzentration innerhalb der Meßbereichsgrenzen des Meßmoduls (1") realisieren.6. Carbon isotope analyzer according to claim 3, characterized in that the integrated metering and circulation unit ( 2 ') and the flushing and zero gas unit ( 2 ") realize the free selectability of the CO 2 concentration within the measuring range limits of the measuring module ( 1 "). 7. Kohlenstoffisotopenanalysator nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, daß die digitale E/A-Einheit (3) den Probeneinlaß digital steuert und kontrolliert und erweiterbar ist.7. Carbon isotope analyzer according to one of the preceding claims, characterized in that the digital I / O unit ( 3 ) digitally controls the sample inlet and is controlled and expandable. 8. Kohlenstoffisotopenanalysator nach Anspruch 1, dadurch gekennzeichnet, daß die Bus-Schnittstelle (4) eine standardisierte CAN-Schnittstelle ist. 8. Carbon isotope analyzer according to claim 1, characterized in that the bus interface ( 4 ) is a standardized CAN interface. 9. Kohlenstoffisotopenanalysator nach Anspruch 8, dadurch gekennzeichnet, daß die Bus-Schnittstelle (4) die interne Steuerung des Kohlenstoffisotopenanalysators und die Kommunikation zur externen PC-Einheit (5) realisiert.9. Carbon isotope analyzer according to claim 8, characterized in that the bus interface ( 4 ) realizes the internal control of the carbon isotope analyzer and the communication to the external PC unit ( 5 ). 10. Kohlenstoffisotopenanalysator nach Anspruch 1, dadurch gekennzeichnet, daß die externe PC-Eihheit (5) mit einer CAN- Steckkarte (10) und der Bediensoftware (6) ausgestattet ist.10. Carbon isotope analyzer according to claim 1, characterized in that the external PC unit ( 5 ) is equipped with a CAN plug-in card ( 10 ) and the operating software ( 6 ). 11. Kohlenstoffisotopenanalysator nach Anspruch 10, dadurch gekennzeichnet, daß die Bediensoftware (6) ein speziell entwickeltes Programm zur Steuerung des Analysators, zur Meßwerterfassung, zur vollständigen Auswertung und Darstellung der Daten sowie zur Überwachung von Geräteteilen auf Funktionsausfall ist und als eine Anwendung unter der bekannten Microsoft-WINDOWS-Oberfläche arbeitet.11. Carbon isotope analyzer according to claim 10, characterized in that the operating software ( 6 ) is a specially developed program for controlling the analyzer, for data acquisition, for complete evaluation and display of the data and for monitoring device parts for functional failure and as an application under the known Microsoft WINDOWS interface works.
DE29780440U 1997-03-11 1997-03-11 Carbon isotope analyzer Expired - Lifetime DE29780440U1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/EP1997/001220 WO1998040722A1 (en) 1997-03-11 1997-03-11 Carbon isotope analyser

Publications (1)

Publication Number Publication Date
DE29780440U1 true DE29780440U1 (en) 2000-04-27

Family

ID=8166547

Family Applications (2)

Application Number Title Priority Date Filing Date
DE29780440U Expired - Lifetime DE29780440U1 (en) 1997-03-11 1997-03-11 Carbon isotope analyzer
DE29706668U Expired - Lifetime DE29706668U1 (en) 1997-03-11 1997-04-14 Carbon isotope analyzer

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE29706668U Expired - Lifetime DE29706668U1 (en) 1997-03-11 1997-04-14 Carbon isotope analyzer

Country Status (4)

Country Link
EP (1) EP0966667A1 (en)
JP (1) JP2001514747A (en)
DE (2) DE29780440U1 (en)
WO (1) WO1998040722A1 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IL121793A (en) * 1997-09-17 2008-06-05 Lewis Coleman Isotopic gas analyzer
DE19752508A1 (en) * 1997-08-18 1999-03-11 Hartmann & Braun Gmbh & Co Kg NDIR photometer for multi-component measurement
DE102006015535A1 (en) 2006-03-31 2007-10-04 Thermo Electron (Bremen) Gmbh Sample isotope ratio analysis, involves supplying sample gas and reference gas to analyzer over coupling, and regulating concentration of sample gas and/or reference gas through electronic flow regulation of carrier gas
DE102012101313A1 (en) * 2012-02-17 2013-08-22 Contros Systems & Solutions Gmbh Apparatus for detecting a partial pressure and method for operating the same
DE102015000626A1 (en) * 2015-01-22 2016-07-28 Kibion Gmbh Method for the detection of Helicobacter pylori

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4907166A (en) * 1986-10-17 1990-03-06 Nellcor, Inc. Multichannel gas analyzer and method of use
US5060505A (en) * 1989-09-12 1991-10-29 Sensors, Inc. Non-dispersive infrared gas analyzer system
US5357113A (en) * 1992-11-18 1994-10-18 Liston Scientific Corp. Infrared gas mixture analyzer
EP0634644A1 (en) * 1993-07-13 1995-01-18 Mic Medical Instrument Corporation Device for determining the 13CO2/12CO2 concentration ratio in a gas sample

Also Published As

Publication number Publication date
DE29706668U1 (en) 1997-06-05
WO1998040722A1 (en) 1998-09-17
JP2001514747A (en) 2001-09-11
EP0966667A1 (en) 1999-12-29

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Legal Events

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R163 Identified publications notified
R079 Amendment of ipc main class

Free format text: PREVIOUS MAIN CLASS: G01N0021350000

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R207 Utility model specification

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