Ihwg-μnir: A Miniaturised Near-infrared Gas Sensor Based On Substrate-integrated Hollow Waveguides Coupled To A Micro-nir-spectrophotometer

dc.creatorRohwedder J.J.R.
dc.creatorPasquini C.
dc.creatorFortes P.R.
dc.creatorRaimundo I.M.
dc.creatorWilk A.
dc.creatorMizaikoff B.
dc.date2014
dc.date2015-06-25T17:49:31Z
dc.date2015-11-26T15:23:22Z
dc.date2015-06-25T17:49:31Z
dc.date2015-11-26T15:23:22Z
dc.date.accessioned2018-03-28T22:32:22Z
dc.date.available2018-03-28T22:32:22Z
dc.identifier
dc.identifierAnalyst. Royal Society Of Chemistry, v. 139, n. 14, p. 3572 - 3576, 2014.
dc.identifier32654
dc.identifier10.1039/c4an00556b
dc.identifierhttp://www.scopus.com/inward/record.url?eid=2-s2.0-84902477224&partnerID=40&md5=26edcd67181781280f61daa4d59dbb7c
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/85672
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/85672
dc.identifier2-s2.0-84902477224
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1260476
dc.descriptionA miniaturised gas analyser is described and evaluated based on the use of a substrate-integrated hollow waveguide (iHWG) coupled to a microsized near-infrared spectrophotometer comprising a linear variable filter and an array of InGaAs detectors. This gas sensing system was applied to analyse surrogate samples of natural fuel gas containing methane, ethane, propane and butane, quantified by using multivariate regression models based on partial least square (PLS) algorithms and Savitzky-Golay 1st derivative data preprocessing. The external validation of the obtained models reveals root mean square errors of prediction of 0.37, 0.36, 0.67 and 0.37% (v/v), for methane, ethane, propane and butane, respectively. The developed sensing system provides particularly rapid response times upon composition changes of the gaseous sample (approximately 2 s) due the minute volume of the iHWG-based measurement cell. The sensing system developed in this study is fully portable with a hand-held sized analyser footprint, and thus ideally suited for field analysis. Last but not least, the obtained results corroborate the potential of NIR-iHWG analysers for monitoring the quality of natural gas and petrochemical gaseous products. This journal is © 2014 the Partner Organisations.
dc.description139
dc.description14
dc.description3572
dc.description3576
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dc.languageen
dc.publisherRoyal Society of Chemistry
dc.relationAnalyst
dc.rightsaberto
dc.sourceScopus
dc.titleIhwg-μnir: A Miniaturised Near-infrared Gas Sensor Based On Substrate-integrated Hollow Waveguides Coupled To A Micro-nir-spectrophotometer
dc.typeArtículos de revistas


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