Please use this identifier to cite or link to this item: https://doi.org/10.1366/000370207782217734
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dc.titleRemote monitoring of a multi-component liquid-phase organic synthesis by infrared emission spectroscopy: The recovery of pure component emissivities by band-target entropy minimization
dc.contributor.authorCheng, S.
dc.contributor.authorTjahjono, M.
dc.contributor.authorRajarathnam, D.
dc.contributor.authorChuanzhao, L.
dc.contributor.authorLyapkalo, I.
dc.contributor.authorChen, D.
dc.contributor.authorGarland, M.
dc.date.accessioned2014-10-09T07:00:20Z
dc.date.available2014-10-09T07:00:20Z
dc.date.issued2007-10
dc.identifier.citationCheng, S., Tjahjono, M., Rajarathnam, D., Chuanzhao, L., Lyapkalo, I., Chen, D., Garland, M. (2007-10). Remote monitoring of a multi-component liquid-phase organic synthesis by infrared emission spectroscopy: The recovery of pure component emissivities by band-target entropy minimization. Applied Spectroscopy 61 (10) : 1057-1062. ScholarBank@NUS Repository. https://doi.org/10.1366/000370207782217734
dc.identifier.issn00037028
dc.identifier.urihttp://scholarbank.nus.edu.sg/handle/10635/90012
dc.description.abstractA liquid-phase cycloaddition reaction near ambient temperature involving dimethyl acetylenedicarboxylate (DMAD) and cyclopentadiene (CP) as reactants was measured using a conventional Fourier transform infrared (FT-IR) spectrometer with an emission accessory. Two semi-batch experiments were performed and a total of 55 spectra were collected using a DTGS detector. Band-target entropy minimization (BTEM), a pure component spectral reconstruction technique, was applied to analyze the data set to retrieve the pure component emission spectrum from the reaction system. The estimated emission spectra of the solvent chloroform, DMAD, CP, and product, namely dimethyl bicyclo[2.2.1]-2,5- heptadiene-2,3-dicarboxylate, were all reconstructed with rather good quality. The estimated emission spectra are similar to independent FT-IR spectra of the same cycloaddition reaction. Using a least squares fit, the relative concentration profiles of the species are obtained. Because this appears to be the first time that a liquid-phase reaction has been monitored by infrared emission spectroscopy, further improvements and opportunities for general multi-phase liquid reaction monitoring are discussed. © 2007 Society for Applied Spectroscopy.
dc.description.urihttp://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1366/000370207782217734
dc.sourceScopus
dc.subjectBand-target entropy minimization
dc.subjectBTEM
dc.subjectEmittance
dc.subjectInfrared emission spectroscopy
dc.subjectLiquid-phase reaction
dc.typeArticle
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.description.doi10.1366/000370207782217734
dc.description.sourcetitleApplied Spectroscopy
dc.description.volume61
dc.description.issue10
dc.description.page1057-1062
dc.description.codenAPSPA
dc.identifier.isiut000250162400007
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