Optical fibre sensor coated with porous silica layers for gas and chemical vapour detection

Abdelghani, Adnane; Chovelon, J. M.; Jaffrézic‐Renault, Nicole; Lacroix, Monique; Gagnaire, H.; Veillas, Colette; Berkova, B.; Chomat, M.; Matejec, Vlastimil

doi:10.1016/s0925-4005(97)00172-x

Cited by 66 publications

(24 citation statements)

References 5 publications

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“…Among the different existing gas sensors, optical sensors based on the change in the refractive index are important in the study of different analytes, such as arterial blood (Soller, 1994;Leiner, 1995), organic solvents (Abdelghani et al, 1997;Albert et al, 2001), combustion gas (Brown et al, 2008) and fuel (Falate et al, 2005). Sensors based on refractive index are usually constituted of optical fibers (OFs) coated with sensing materials such as polymers, porous silica, and fluorescent indicators.…”

Section: Fuel Sensors Based On Refractive Index Measurementsmentioning

confidence: 99%

Analytical Methods for Determining Automotive Fuel Composition

Gruber¹,

Lippi²,

Li³

et al. 2011

New Trends and Developments in Automotive System Engineering

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Section: Fuel Sensors Based On Refractive Index Measurementsmentioning

confidence: 99%

Analytical Methods for Determining Automotive Fuel Composition

Gruber¹,

Lippi²,

Li³

et al. 2011

New Trends and Developments in Automotive System Engineering

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“…Recently, quantum dots embedded coating on optical fibers have been developed to detect gases [1,2], pH [3], temperature [4], humidity [5,6] and bimolecules [7,8]. There are various schemes described in literature, for optical fiber sensors such as Bent optical fiber sensor [9], tapered optical fiber sensors and cladding removed optical fiber sensor [10].…”

Section: Introductionmentioning

confidence: 99%

Sensing application of an optical fiber dip coated with L-Cystein ethyl ester hydrochloride capped ZnTe quantum dots

Sundaray

Das

Tripathy

2016

Materials Science-Poland

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Optical fiber in conjunction with ZnTe quantum dots (QDs) is investigated for sensing application. ZnTe QDs, are synthesized by a simple chemical bottom up approach. Quantum dots are capped with L-Cystein ethyl ester hydrochloride (LEEH), to increase their stability. Then LEEH capped ZnTe QDs, whose size is estimated as 2.29 nm by effective mass approximation (EMA), are dip-coated on a cladding removed optical fiber. Different concentrations of alcohol and ammonia are used to investigate the sensing behavior. It is found that sensitivity of the sensor increases with the use of QDs for both alcohol and ammonia.

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“…Lately, several research groups [5][6][7][8][9][10][11][12][13] focused their attention on optical fiber sensors as a tool for monitoring the concentration of VOCs. Bruckner and Synovec 14 have developed an annular column chromatographic optical-fiber sensor for the separation and detection of methane, benzene, butanone and chlorobenzene in 6 min.…”

Section: Introductionmentioning

confidence: 99%

“…When, the analyte absorbs into the specific porous silica cladding, its refractive index changes according to the level of the analyte concentration, leading to a variation of the reflected optical power. 7,15 This paper presents an analytical methodology based on the application of GC-OF for the speciation of aromatic hydrocarbons; the results were compared with those obtained by the GC-FID methodology accordingly to Method 1501 of NIOSH.…”

Section: Introductionmentioning

confidence: 99%

Gas Chromatography-Optical Fiber Detector for the Speciation of Aromatic Hydrocarbons in Confined Areas

2008

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An analytical method, based on separation with gas chromatography (GC) and detection with optical fiber (OF), was used for the separation, detection and quantification of benzene, toluene, ethylbenzene, p-xylene, m-xylene and o-xylene. The use of OF as a detector is based on the variations of the reflected optical power detected when the aromatic compounds eluted from the GC column are sorbed in a thin polymeric film on a single-mode OF. General figures of merit, such as the analytical time, analytical error and analytical performance of GC-OF were similar to those of the classical analytical methods, such as a gas chromatography-flame ionization detector (GC-FID). However, the developed GC-OF method constitutes a much less expensive alternative for the speciation of aromatic hydrocarbons compounds, with high accuracy, and being most suitable for actual monitoring work on confined environments.

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Optical fibre sensor coated with porous silica layers for gas and chemical vapour detection

Cited by 66 publications

References 5 publications

Analytical Methods for Determining Automotive Fuel Composition

Analytical Methods for Determining Automotive Fuel Composition

Sensing application of an optical fiber dip coated with L-Cystein ethyl ester hydrochloride capped ZnTe quantum dots

Gas Chromatography-Optical Fiber Detector for the Speciation of Aromatic Hydrocarbons in Confined Areas

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