AU2001252085A1 - Multiple pathlength spectrophotometer - Google Patents

Multiple pathlength spectrophotometer

Info

Publication number
AU2001252085A1
AU2001252085A1 AU2001252085A AU5208501A AU2001252085A1 AU 2001252085 A1 AU2001252085 A1 AU 2001252085A1 AU 2001252085 A AU2001252085 A AU 2001252085A AU 5208501 A AU5208501 A AU 5208501A AU 2001252085 A1 AU2001252085 A1 AU 2001252085A1
Authority
AU
Australia
Prior art keywords
pathlength
array
spectrometer
spectrophotometer
multiple wavelength
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.)
Abandoned
Application number
AU2001252085A
Inventor
Theodore M. Garver
David Jenkins
Andrew Riser
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.)
Alberta Research Council
Original Assignee
Alberta Research Council
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 Alberta Research Council filed Critical Alberta Research Council
Publication of AU2001252085A1 publication Critical patent/AU2001252085A1/en
Abandoned legal-status Critical Current

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
    • G01N21/01—Arrangements or apparatus for facilitating the optical investigation
    • G01N21/03—Cuvette constructions
    • G01N21/0303—Optical path conditioning in cuvettes, e.g. windows; adapted optical elements or systems; path modifying or adjustment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/12—Generating the spectrum; Monochromators
    • G01J3/18—Generating the spectrum; Monochromators using diffraction elements, e.g. grating
    • G01J3/20—Rowland circle spectrometers
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J3/00—Spectrometry; Spectrophotometry; Monochromators; Measuring colours
    • G01J3/28—Investigating the spectrum
    • G01J3/42—Absorption spectrometry; Double beam spectrometry; Flicker spectrometry; Reflection spectrometry
    • 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
    • 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
    • G01N21/05—Flow-through cuvettes
    • 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
    • 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
    • G01N21/33—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using ultraviolet light
    • 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
    • G01N2021/3129—Determining multicomponents by multiwavelength light
    • 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
    • G01N2021/3129—Determining multicomponents by multiwavelength light
    • G01N2021/3133—Determining multicomponents by multiwavelength light with selection of wavelengths before the sample
    • 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
    • G01N2021/3129—Determining multicomponents by multiwavelength light
    • G01N2021/3137—Determining multicomponents by multiwavelength light with selection of wavelengths after the sample
    • 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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths
    • G01N2021/3155—Measuring in two spectral ranges, e.g. UV and visible
    • 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
    • G01N2021/3185—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry typically monochromatic or band-limited

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

A spectrometer or multiple wavelength absorbance detection method and apparatus providing improved accuracy for an array of measurements at different wavelengths. The spectrometer utilizes a multiple wavelength illumination system with an array of independent detectors with different pathlength cells, where each cell is illuminated with predominately monochromatic light after separation by a light dispersing element. Each sample cell has an optical pathlength, optics and photodetection device that are optimized for its particular wavelength to accurately measure absorbance through an expected substance.
AU2001252085A 2000-06-27 2001-04-30 Multiple pathlength spectrophotometer Abandoned AU2001252085A1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
CA2312501 2000-06-27
CA2312501 2000-06-27
PCT/CA2001/000582 WO2002001198A1 (en) 2000-06-27 2001-04-30 Multiple pathlength spectrophotometer

Publications (1)

Publication Number Publication Date
AU2001252085A1 true AU2001252085A1 (en) 2002-01-08

Family

ID=4166579

Family Applications (1)

Application Number Title Priority Date Filing Date
AU2001252085A Abandoned AU2001252085A1 (en) 2000-06-27 2001-04-30 Multiple pathlength spectrophotometer

Country Status (7)

Country Link
US (1) US6643016B2 (en)
EP (1) EP1297320B1 (en)
AT (1) ATE387623T1 (en)
AU (1) AU2001252085A1 (en)
CA (1) CA2411413C (en)
DE (1) DE60133002T2 (en)
WO (1) WO2002001198A1 (en)

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US20070030482A1 (en) * 2005-08-08 2007-02-08 Zhenghua Ji Spectrophotometer with adjustable light pathlength
CA2631830C (en) * 2005-11-29 2015-07-14 Klein Medical Limited Syringe for use in spectroscopy
US7616316B1 (en) 2006-02-27 2009-11-10 Southwest Sciences Incorporated Gas measurement over extreme dynamic range of concentrations
WO2009017721A2 (en) * 2007-07-28 2009-02-05 Buglab Llc Particle sensor with wide linear range
US7710568B1 (en) 2007-09-28 2010-05-04 Southwest Sciences Incorporated Portable natural gas leak detector
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WO2012126471A2 (en) * 2011-03-23 2012-09-27 Danfoss Ixa A/S Modular gas sensor
KR102021874B1 (en) 2011-04-06 2019-11-04 클라인 메디칼 리미티드 Spectroscopic analyser
GB201120769D0 (en) 2011-12-02 2012-01-11 Biochrom Ltd Improvements in and relating to devices for recieving liquid samples
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DE102013011495A1 (en) * 2013-07-02 2015-01-08 Laser- Und Medizin-Technologie Gmbh, Berlin Method for determining the concentration of a substance in a deformable container
US10710067B2 (en) 2014-01-23 2020-07-14 Spectrum Perception Llc Pipette tip with integrated light guides in the body and method of spectroscopic analysis using same
US10345145B2 (en) 2014-01-23 2019-07-09 Specturm Perception Llc Miniaturized spectrometer for sensitive and robust laboratory and field use
GB201406707D0 (en) 2014-04-15 2014-05-28 Univ Leicester In-bottle detection method
DE102014212564A1 (en) * 2014-07-29 2016-02-04 Robert Bosch Gmbh Measuring device for the determination of gaseous components of the air
US10288557B2 (en) 2015-12-18 2019-05-14 Abbott Laboratories Spectral differentiation of histological stains
CN106018315B (en) * 2016-05-17 2018-09-11 天津大学 A kind of engine exhaust gas analyzer based on Rowland grating
DE102016123650A1 (en) * 2016-12-07 2018-06-07 Endress+Hauser Conducta Gmbh+Co. Kg Method for determining a measured variable correlated with an extinction and corresponding sensor arrangement
GB2573447B (en) * 2016-12-14 2021-08-04 Schlumberger Technology Bv Method to predict downhole reservoir fluids interfacial tension
CN107621457B (en) * 2017-09-27 2024-07-16 中国科学院理化技术研究所 Deep ultraviolet frequency doubling testing device
CN108844908B (en) * 2018-07-11 2023-07-21 天津工业大学 Multidimensional spectrum detection device and analysis method
US11249015B2 (en) 2019-06-06 2022-02-15 Crystal Is, Inc. Chemical concentration measurement apparatus
CN112240871A (en) * 2020-09-25 2021-01-19 河南工业大学 Rice freshness measuring instrument and using method thereof
US20230002801A1 (en) * 2021-01-12 2023-01-05 Repligen Corporation Offline and inline determination of concentration of metabolites in cell culture fluid
CN112730290B (en) * 2021-01-25 2022-04-15 清华大学 Multi-optical path absorption spectrum spectrogram synthesis method

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Also Published As

Publication number Publication date
US6643016B2 (en) 2003-11-04
EP1297320B1 (en) 2008-02-27
ATE387623T1 (en) 2008-03-15
CA2411413A1 (en) 2002-01-03
DE60133002D1 (en) 2008-04-10
WO2002001198A1 (en) 2002-01-03
DE60133002T2 (en) 2009-02-26
CA2411413C (en) 2011-05-03
EP1297320A1 (en) 2003-04-02
US20010055115A1 (en) 2001-12-27

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Legal Events

Date Code Title Description
MK6 Application lapsed section 142(2)(f)/reg. 8.3(3) - pct applic. not entering national phase
TH Corrigenda

Free format text: IN VOL 16, NO 12, PAGE(S) 2688-2711 UNDER THE HEADING APPLICATIONS LAPSED, REFUSED OR WITHDRAWN PLEASE DELETE ALL REFERENCE TO APPLICATION NO. 51135/00, 55739/00, 55753/00, 58352/00, 64779/00, 11766/01, 14201/01, 18556/01, 20246/01, 20294/01, 22332/01, 35823/01, 36156/01, 37182/01, 46369/01, 48208/01, 48315/01, 50679/01, 52085/01, 52276/01, 56642/01, 60274/01, 60568/01, 60778/01, 62458/01, 62772/01, 62800/01, 64365/01, 65683/01, 66404/01, 67663/01, 69082/01, 69203/01, 69256/01, 69635/01, 69646/01, 70658/01, 70666/01, 74025/01, 74137/01, 74164/01, 74182/01, 74196/01, 74638/01, 75606/01, 77459/01 AND 78421/01