CA2746235C - Capteur chimique polarimetrique haute sensibilite - Google Patents

Capteur chimique polarimetrique haute sensibilite Download PDF

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Publication number
CA2746235C
CA2746235C CA2746235A CA2746235A CA2746235C CA 2746235 C CA2746235 C CA 2746235C CA 2746235 A CA2746235 A CA 2746235A CA 2746235 A CA2746235 A CA 2746235A CA 2746235 C CA2746235 C CA 2746235C
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Prior art keywords
light
sample fluid
passage
analyte
optical waveguide
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CA2746235A
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CA2746235A1 (fr
Inventor
Serge Caron
Claude Pare
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Institut National dOptique
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Institut National dOptique
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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
    • G01N21/21—Polarisation-affecting properties
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N30/00—Investigating or analysing materials by separation into components using adsorption, absorption or similar phenomena or using ion-exchange, e.g. chromatography or field flow fractionation
    • G01N30/02—Column chromatography
    • G01N30/62—Detectors specially adapted therefor
    • G01N30/74—Optical detectors
    • G01N2030/746—Optical detectors detecting along the line of flow, e.g. axial

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

Abstract

Un capteur chimique polarimétrique à fibres optiques pour une chromatographie en phase gazeuse sur colonne capillaire dans lequel un échantillon fluide est injecté dans un capillaire sous forme dun train dimpulsions périodiques. Chaque impulsion individuelle définit une zone de couplage par polarisation mobile qui touche létat de polarisation de la lumière qui se propage dans le guide donde optique biréfringent qui comprend le capillaire. Lespace entre les zones de couplage consécutives peut être rendu égal à la longueur de battement de polarisation du guide donde quand la fréquence dinjection des impulsions est correctement sélectionnée pour un analyte donné. Les contributions des zones de couplage successives présentes le long de la longueur du capillaire sajoutent alors en phase, se traduisant ainsi en un signal optique détecté avec une crête damplitude améliorée à la fréquence dinjection. De cette manière, la sensibilité peut être améliorée.
CA2746235A 2011-07-14 2011-07-14 Capteur chimique polarimetrique haute sensibilite Active CA2746235C (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CA2746235A CA2746235C (fr) 2011-07-14 2011-07-14 Capteur chimique polarimetrique haute sensibilite

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA2746235A CA2746235C (fr) 2011-07-14 2011-07-14 Capteur chimique polarimetrique haute sensibilite

Publications (2)

Publication Number Publication Date
CA2746235A1 CA2746235A1 (fr) 2013-01-14
CA2746235C true CA2746235C (fr) 2016-12-06

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CA2746235A Active CA2746235C (fr) 2011-07-14 2011-07-14 Capteur chimique polarimetrique haute sensibilite

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CA (1) CA2746235C (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108169144A (zh) * 2016-12-07 2018-06-15 云南师范大学 一种基于光纤的可变光程气体采样器
CN111122444A (zh) * 2018-11-01 2020-05-08 西安电子科技大学 一种多重谐振式t型增强的多种痕量气体同时检测装置
CN111122445A (zh) * 2018-11-01 2020-05-08 西安电子科技大学 一种多重谐振式t型增强的多种痕量气体同时检测方法

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108169144A (zh) * 2016-12-07 2018-06-15 云南师范大学 一种基于光纤的可变光程气体采样器
CN111122444A (zh) * 2018-11-01 2020-05-08 西安电子科技大学 一种多重谐振式t型增强的多种痕量气体同时检测装置
CN111122445A (zh) * 2018-11-01 2020-05-08 西安电子科技大学 一种多重谐振式t型增强的多种痕量气体同时检测方法

Also Published As

Publication number Publication date
CA2746235A1 (fr) 2013-01-14

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Effective date: 20130920