GB2611070B - Electromagnetic control of absorption and suppression of spectral artefacts - Google Patents

Electromagnetic control of absorption and suppression of spectral artefacts Download PDF

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Publication number
GB2611070B
GB2611070B GB2113699.9A GB202113699A GB2611070B GB 2611070 B GB2611070 B GB 2611070B GB 202113699 A GB202113699 A GB 202113699A GB 2611070 B GB2611070 B GB 2611070B
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GB
United Kingdom
Prior art keywords
suppression
absorption
electromagnetic control
spectral artefacts
artefacts
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.)
Active
Application number
GB2113699.9A
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GB2611070A (en
GB202113699D0 (en
Inventor
Alan Lawson Michael
Lopez Martin
Alizadeh Bahram
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.)
Servomex Group Ltd
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Servomex Group 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 Servomex Group Ltd filed Critical Servomex Group Ltd
Priority to GB2113699.9A priority Critical patent/GB2611070B/en
Publication of GB202113699D0 publication Critical patent/GB202113699D0/en
Priority to GB2211371.6A priority patent/GB2611169B/en
Priority to US17/934,300 priority patent/US20230098004A1/en
Priority to EP22197587.3A priority patent/EP4155715A1/en
Priority to TW111136049A priority patent/TW202321674A/en
Priority to GB2213920.8A priority patent/GB2612906B/en
Priority to KR1020220121875A priority patent/KR20230043775A/en
Priority to CN202211180365.8A priority patent/CN115855873A/en
Priority to JP2022152964A priority patent/JP2023047350A/en
Publication of GB2611070A publication Critical patent/GB2611070A/en
Application granted granted Critical
Publication of GB2611070B publication Critical patent/GB2611070B/en
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    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/39—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using tunable lasers
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0059—Avoiding interference of a gas with the gas to be measured
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/255—Details, e.g. use of specially adapted sources, lighting or optical systems
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/3103—Atomic absorption analysis
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating 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
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N22/00—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more
    • G01N22/005—Investigating or analysing materials by the use of microwaves or radio waves, i.e. electromagnetic waves with a wavelength of one millimetre or more and using Stark effect modulation
    • 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
    • G01N21/15—Preventing contamination of the components of the optical system or obstruction of the light path
    • G01N2021/151—Gas blown
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
    • G01N2021/1721—Electromodulation
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/1717—Systems in which incident light is modified in accordance with the properties of the material investigated with a modulation of one or more physical properties of the sample during the optical investigation, e.g. electro-reflectance
    • G01N2021/1727—Magnetomodulation
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/3103—Atomic absorption analysis
    • G01N2021/3111—Atomic absorption analysis using Zeeman split
    • 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
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
    • G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
    • G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
    • G01N21/3504—Investigating 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
    • G01N2021/3545—Disposition for compensating effect of interfering gases
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/0037—NOx
    • 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
    • G01N33/0004—Gaseous mixtures, e.g. polluted air
    • G01N33/0009—General constructional details of gas analysers, e.g. portable test equipment
    • G01N33/0027—General constructional details of gas analysers, e.g. portable test equipment concerning the detector
    • G01N33/0036—General constructional details of gas analysers, e.g. portable test equipment concerning the detector specially adapted to detect a particular component
    • G01N33/004—CO or CO2

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  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Analytical Chemistry (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Electromagnetism (AREA)
  • Optics & Photonics (AREA)
  • Combustion & Propulsion (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
GB2113699.9A 2021-09-24 2021-09-24 Electromagnetic control of absorption and suppression of spectral artefacts Active GB2611070B (en)

Priority Applications (9)

Application Number Priority Date Filing Date Title
GB2113699.9A GB2611070B (en) 2021-09-24 2021-09-24 Electromagnetic control of absorption and suppression of spectral artefacts
GB2211371.6A GB2611169B (en) 2021-09-24 2022-08-04 Electromagnetic control of absorption and suppression of spectral artefacts
US17/934,300 US20230098004A1 (en) 2021-09-24 2022-09-22 Electromagnetic control of absorption and suppression of spectral artifacts
EP22197587.3A EP4155715A1 (en) 2021-09-24 2022-09-23 Electromagnetic control of absorption and suppression of spectral artefacts
TW111136049A TW202321674A (en) 2021-09-24 2022-09-23 Electromagnetic control of absorption and suppression of spectral artefacts
GB2213920.8A GB2612906B (en) 2021-09-24 2022-09-23 Electromagnetic control of absorption and suppression of spectral artefacts
KR1020220121875A KR20230043775A (en) 2021-09-24 2022-09-26 Electromagnetic control of absorption and suppression of spectral artefacts
CN202211180365.8A CN115855873A (en) 2021-09-24 2022-09-26 Electromagnetic control of absorption and suppression of spectral artifacts
JP2022152964A JP2023047350A (en) 2021-09-24 2022-09-26 Electromagnetic control of absorption and suppression of spectral artifacts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2113699.9A GB2611070B (en) 2021-09-24 2021-09-24 Electromagnetic control of absorption and suppression of spectral artefacts

Publications (3)

Publication Number Publication Date
GB202113699D0 GB202113699D0 (en) 2021-11-10
GB2611070A GB2611070A (en) 2023-03-29
GB2611070B true GB2611070B (en) 2024-04-03

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GB2211371.6A Active GB2611169B (en) 2021-09-24 2022-08-04 Electromagnetic control of absorption and suppression of spectral artefacts

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636926A (en) * 1948-04-13 1953-04-28 Jr Edgar B Wilson Microwave spectrography
JPS52156687A (en) * 1976-06-23 1977-12-27 Hitachi Ltd Zeeman atomic absorption spectrometer for measurement of wide range of concentrations
US4989975A (en) * 1988-03-18 1991-02-05 Dencks Carl G Atomic absorption spectrometer
US20040155664A1 (en) * 2003-02-11 2004-08-12 Zhangwu Zhu Microwave spectrometer
WO2010072270A1 (en) * 2008-12-23 2010-07-01 Abb Research Ltd Oxygen concentration measuring device
US20170322147A1 (en) * 2014-11-11 2017-11-09 Shimadzu Corporation Atomic absorption photometer and atomic absorption measurement method

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2636926A (en) * 1948-04-13 1953-04-28 Jr Edgar B Wilson Microwave spectrography
JPS52156687A (en) * 1976-06-23 1977-12-27 Hitachi Ltd Zeeman atomic absorption spectrometer for measurement of wide range of concentrations
US4989975A (en) * 1988-03-18 1991-02-05 Dencks Carl G Atomic absorption spectrometer
US20040155664A1 (en) * 2003-02-11 2004-08-12 Zhangwu Zhu Microwave spectrometer
WO2010072270A1 (en) * 2008-12-23 2010-07-01 Abb Research Ltd Oxygen concentration measuring device
US20170322147A1 (en) * 2014-11-11 2017-11-09 Shimadzu Corporation Atomic absorption photometer and atomic absorption measurement method

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
"61st Canadian Chemical Conference and Exhibition", published 1978, Chemical Institute of Canada, pp 1-45, Koizumi, "Various applications of Zeeman atomic absorption spectroscopy", Available from https://escholarship.org/uc/item/2t25f7vd [Accessed 20 October 2021] *
MTC de Loos-Vollebregt, "Zeeman atomic absorption spectroscopy", published 1980, Delft University Press, Available from https://inis.iaea.org/collection/NCLCollectionStore/_Public/11/553/11553016.pdf [Accessed 20 October 2021] *

Also Published As

Publication number Publication date
GB2611070A (en) 2023-03-29
GB202211371D0 (en) 2022-09-21
GB2611169B (en) 2024-03-27
GB202113699D0 (en) 2021-11-10
GB2611169A (en) 2023-03-29

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