WO2007022895A3 - Measuring device for optical determination of toxic gas concentration by transmission - Google Patents

Measuring device for optical determination of toxic gas concentration by transmission Download PDF

Info

Publication number
WO2007022895A3
WO2007022895A3 PCT/EP2006/008016 EP2006008016W WO2007022895A3 WO 2007022895 A3 WO2007022895 A3 WO 2007022895A3 EP 2006008016 W EP2006008016 W EP 2006008016W WO 2007022895 A3 WO2007022895 A3 WO 2007022895A3
Authority
WO
WIPO (PCT)
Prior art keywords
toxic gas
transmission
measuring device
detection means
optical determination
Prior art date
Application number
PCT/EP2006/008016
Other languages
German (de)
French (fr)
Other versions
WO2007022895A2 (en
Inventor
Michael Hanko
Juergen Heinze
Sara Rentmeister
Original Assignee
Univ Albert Ludwigs Freiburg
Michael Hanko
Juergen Heinze
Sara Rentmeister
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 Univ Albert Ludwigs Freiburg, Michael Hanko, Juergen Heinze, Sara Rentmeister filed Critical Univ Albert Ludwigs Freiburg
Publication of WO2007022895A2 publication Critical patent/WO2007022895A2/en
Publication of WO2007022895A3 publication Critical patent/WO2007022895A3/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/75—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated
    • G01N21/77—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator
    • G01N21/78—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour
    • G01N21/783—Systems in which material is subjected to a chemical reaction, the progress or the result of the reaction being investigated by observing the effect on a chemical indicator producing a change of colour for analysing gases
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N1/00—Sampling; Preparing specimens for investigation
    • G01N1/02—Devices for withdrawing samples
    • G01N1/22—Devices for withdrawing samples in the gaseous state
    • G01N1/24—Suction devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/031—Multipass arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/22—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using chemical indicators

Abstract

The aim of the invention is to produce a measuring device by means of which the concentration of a toxic gas can be rapidly and simply determined. According to the invention, said aim is achieved by means of a measuring device for optical determination of the concentration of at least one toxic gas by transmission, comprising a measuring cell which is not transparent to light, with a housing in which a tubular at least partly transparent detection means, at least partly provided on the inner wall thereof with a transparent coating of a given layer thickness made from at least one polymeric material with at least one indicator substance immobilised therein, further comprising a pump or suction device arranged before or after the detection means, which pumps a toxic gas stream through the detection means and at least one light source and at least one receiver means arranged to one and/or more sides of the detection means, by means of which an absorption change for the indicator substance is measured by transmission as a function of time. The receiver means may be connected to an analysis unit.
PCT/EP2006/008016 2005-08-20 2006-08-14 Measuring device for optical determination of toxic gas concentration by transmission WO2007022895A2 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102005039539.2 2005-08-20
DE200510039539 DE102005039539B3 (en) 2005-08-20 2005-08-20 Measuring device, for visually determining of concentration of pollutant gas in transmission, has light source and receiving means by means of which absorption change of indicator substance is measured in dependence upon time

Publications (2)

Publication Number Publication Date
WO2007022895A2 WO2007022895A2 (en) 2007-03-01
WO2007022895A3 true WO2007022895A3 (en) 2007-05-31

Family

ID=37545302

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2006/008016 WO2007022895A2 (en) 2005-08-20 2006-08-14 Measuring device for optical determination of toxic gas concentration by transmission

Country Status (2)

Country Link
DE (1) DE102005039539B3 (en)
WO (1) WO2007022895A2 (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013006546B4 (en) 2013-04-16 2020-08-06 Dräger Safety AG & Co. KGaA Measuring device, reaction carrier and measuring method
DE102013006548B4 (en) * 2013-04-16 2022-02-03 Dräger Safety AG & Co. KGaA Measuring device, reaction carrier and measuring method
DE102014103721A1 (en) * 2013-12-20 2015-06-25 Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG Optical sensor, in particular for determining substance concentrations in aqueous solutions by means of a chemiluminescence, absorption or fluorescence measurement
DE102017010220A1 (en) * 2017-11-03 2019-05-09 Dräger Safety AG & Co. KGaA A monitoring device and method for monitoring an ambient gas
CN111474130A (en) * 2020-05-29 2020-07-31 南昌航空大学 Simple device and method for on-line detection of gaseous propionaldehyde and acrolein based on spectrum method

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1991005252A1 (en) * 1989-09-29 1991-04-18 Abbey Biosystems Limited Carbon dioxide monitor
US5124129A (en) * 1988-07-29 1992-06-23 Mallinckrodt Medical, Inc. Carbon dioxide indicator
US5834626A (en) * 1996-11-29 1998-11-10 De Castro; Emory S. Colorimetric indicators for breath, air, gas and vapor analyses and method of manufacture
US6020207A (en) * 1998-06-17 2000-02-01 World Precision Instruments, Inc. Optical analysis technique and sensors for use therein
EP1500930A1 (en) * 2002-04-24 2005-01-26 Tomohiko Hashiba Method of measuring formaldehyde concentration of gas and measuring instrument

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19943733C1 (en) * 1999-09-03 2001-06-13 Otto Hoff Optoelectronic fluid identification method e.g. for automobile engine fuel, uses measured transmission intensities for different wavelengths for calculation of extinction factor ratios compared with reference values
DE10016023C2 (en) * 2000-03-31 2003-01-30 Glukomeditech Ag Flow measuring cell and its use

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5124129A (en) * 1988-07-29 1992-06-23 Mallinckrodt Medical, Inc. Carbon dioxide indicator
WO1991005252A1 (en) * 1989-09-29 1991-04-18 Abbey Biosystems Limited Carbon dioxide monitor
US5834626A (en) * 1996-11-29 1998-11-10 De Castro; Emory S. Colorimetric indicators for breath, air, gas and vapor analyses and method of manufacture
US6020207A (en) * 1998-06-17 2000-02-01 World Precision Instruments, Inc. Optical analysis technique and sensors for use therein
EP1500930A1 (en) * 2002-04-24 2005-01-26 Tomohiko Hashiba Method of measuring formaldehyde concentration of gas and measuring instrument

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
MARCIN ALEXY ET AL: "Optochemical sensor for determining ozone based on novel soluble indigo dyes immobilised in a highly permeable polymeric film", ANALYTICAL AND BIOANALYTICAL CHEMISTRY, SPRINGER-VERLAG, BE, vol. 382, no. 7, 1 August 2005 (2005-08-01), pages 1628 - 1641, XP019327486, ISSN: 1618-2650 *

Also Published As

Publication number Publication date
WO2007022895A2 (en) 2007-03-01
DE102005039539B3 (en) 2007-01-04

Similar Documents

Publication Publication Date Title
EP1881322B8 (en) Space-optimised portable measuring system
ATE531018T1 (en) SMOKE DETECTOR WITH POLLUTION MONITORING
WO2008110927A3 (en) Sensor system and sampling cell assembly for use with sensor system
AU2007303310B8 (en) Formaldehyde detector body, formaldehyde detector, formaldehyde detection method and formaldehyde detection reagent
WO2006129054A8 (en) Devices and methods for quantification of liquids in gas-condensate wells
WO2007130522A3 (en) Integrated mold detector
EP1845363A3 (en) Sample analyzer
WO2008090330A8 (en) Detecting objects
WO2007022895A3 (en) Measuring device for optical determination of toxic gas concentration by transmission
SE0602286L (en) Sensor
WO2010044598A3 (en) Microfluidic device using centrifugal force and sample analyzing method using the microfluidic device
EP2500712A3 (en) Gas concentration measuring apparatus
WO2007002389A3 (en) Gas measurement system
WO2009007875A3 (en) Photo acoustic sample detector with light guide
WO2008029298A3 (en) Optical probe
WO2006127963A3 (en) Chemical sensor
ATE441104T1 (en) DEVICE FOR OPTICALLY MEASURING SUBSTANCE CONCENTRATIONS
WO2007112215A3 (en) Optical design of a measurement system having multiple sensor or multiple light source paths
JP2009536339A5 (en)
US7928394B1 (en) Testing device containing a gas sensor
WO2010075014A3 (en) Organic chemical sensor with microporous organosilicate material
EA200702556A1 (en) DEVICE FOR ANALYSIS
ATE464546T1 (en) TEMPERATURE MEASUREMENT ARRANGEMENT
DE60138610D1 (en) Test strip with porous filter layer
RU2013126075A (en) SENSOR FOR TARGET TARGET DETECTION

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 06776828

Country of ref document: EP

Kind code of ref document: A2

122 Ep: pct application non-entry in european phase

Ref document number: 06776828

Country of ref document: EP

Kind code of ref document: A2