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Statements

Subject Item
n2:RIV%2F67985882%3A_____%2F14%3A00436361%21RIV15-AV0-67985882
rdf:type
skos:Concept n13:Vysledek
dcterms:description
Monitoring of dangerous hydrocarbons is an important issue for both chemical process control in industry and protection of the environment. Vapors of toluene are highly dangerous in low concentrations because of its low explosive limit of 1.2 mol%. Toluene vapors in concentrations lower than the explosive limit can be detected using a fiber optic arrangement containing a short section of suspended core microstructured optical fiber (SC MOF). We prepared the SC MOF for this purpose, with an inner structure consisting of a relatively thin silica core, 2.6 μm in diameter, surrounded by three large cladding holes with radii of 26 μm, which were designed to be large enough for trouble-free analyte flow. It has been shown that a 0.3 m-long SC MOF sensing element can be used for refractometric detection of toluene vapors in low concentrations without using any other adsorption layers. We have experimentally verified the operational reversibility of the SC MOF sensing element in time. A sensitivity of 1.20 0.04 dB/mol% and a detection limit of 0.0079 mol% have been determined for this sensing element. The SC MOF can detect sufficiently low concentrations of toluene vapors to reveal safety risks before the toluene reaches the lower explosive limit Monitoring of dangerous hydrocarbons is an important issue for both chemical process control in industry and protection of the environment. Vapors of toluene are highly dangerous in low concentrations because of its low explosive limit of 1.2 mol%. Toluene vapors in concentrations lower than the explosive limit can be detected using a fiber optic arrangement containing a short section of suspended core microstructured optical fiber (SC MOF). We prepared the SC MOF for this purpose, with an inner structure consisting of a relatively thin silica core, 2.6 μm in diameter, surrounded by three large cladding holes with radii of 26 μm, which were designed to be large enough for trouble-free analyte flow. It has been shown that a 0.3 m-long SC MOF sensing element can be used for refractometric detection of toluene vapors in low concentrations without using any other adsorption layers. We have experimentally verified the operational reversibility of the SC MOF sensing element in time. A sensitivity of 1.20 0.04 dB/mol% and a detection limit of 0.0079 mol% have been determined for this sensing element. The SC MOF can detect sufficiently low concentrations of toluene vapors to reveal safety risks before the toluene reaches the lower explosive limit
dcterms:title
Detection of hydrocarbons using suspended core microstructured optical fiber Detection of hydrocarbons using suspended core microstructured optical fiber
skos:prefLabel
Detection of hydrocarbons using suspended core microstructured optical fiber Detection of hydrocarbons using suspended core microstructured optical fiber
skos:notation
RIV/67985882:_____/14:00436361!RIV15-AV0-67985882
n3:aktivita
n5:P n5:I
n3:aktivity
I, P(LD11030), P(LF11001)
n3:cisloPeriodika
October
n3:dodaniDat
n6:2015
n3:domaciTvurceVysledku
n7:3707504 n7:4571827 n7:8241066 n7:7264054 n7:6426603
n3:druhVysledku
n16:J
n3:duvernostUdaju
n9:S
n3:entitaPredkladatele
n15:predkladatel
n3:idSjednocenehoVysledku
10612
n3:idVysledku
RIV/67985882:_____/14:00436361
n3:jazykVysledku
n17:eng
n3:klicovaSlova
Evanescent wave; Microstructured optical fiber; Refractive index
n3:klicoveSlovo
n10:Microstructured%20optical%20fiber n10:Refractive%20index n10:Evanescent%20wave
n3:kodStatuVydavatele
CH - Švýcarská konfederace
n3:kontrolniKodProRIV
[6FFA6F3FE42B]
n3:nazevZdroje
Sensors and Actuators B - Chemical
n3:obor
n12:JA
n3:pocetDomacichTvurcuVysledku
5
n3:pocetTvurcuVysledku
5
n3:projekt
n14:LF11001 n14:LD11030
n3:rokUplatneniVysledku
n6:2014
n3:svazekPeriodika
202
n3:tvurceVysledku
Podrazký, Ondřej Kašík, Ivan Aubrecht, Ivo Martan, Tomáš Matějec, Vlastimil
n3:wos
000339994900017
s:issn
0925-4005
s:numberOfPages
6
n18:doi
10.1016/j.snb.2014.04.103