Please use this identifier to cite or link to this item:
https://doi.org/10.1021/ac200589k
DC Field | Value | |
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dc.title | Cholesteric liquid crystals doped with dodecylamine for detecting aldehyde vapors | |
dc.contributor.author | Sutarlie, L. | |
dc.contributor.author | Lim, J.Y. | |
dc.contributor.author | Yang, K.-L. | |
dc.date.accessioned | 2014-10-09T06:44:45Z | |
dc.date.available | 2014-10-09T06:44:45Z | |
dc.date.issued | 2011-07-01 | |
dc.identifier.citation | Sutarlie, L., Lim, J.Y., Yang, K.-L. (2011-07-01). Cholesteric liquid crystals doped with dodecylamine for detecting aldehyde vapors. Analytical Chemistry 83 (13) : 5253-5258. ScholarBank@NUS Repository. https://doi.org/10.1021/ac200589k | |
dc.identifier.issn | 00032700 | |
dc.identifier.uri | http://scholarbank.nus.edu.sg/handle/10635/88650 | |
dc.description.abstract | In this paper, we report a study of using cholesteric liquid crystals (CLCs) doped with dodecylamine for detecting aldehyde vapors. CLCs doped with dodecylamine show color change from red to yellow-green upon exposure to 300 ppmv pentyl aldehyde within 60 s. In contrast, no colorimetric response is observed when pure CLCs are used. Characterization by using FT-IR shows that the possible mechanism responsible for the colorimetric response is the formation of an imine bond between dodecylamine and pentyl aldehyde. A new C=N peak at 1670 cm-1 appears in the spectrum after the exposure to aldehyde vapors. The CLCs doped with dodecylamine show good selectivity for pentyl aldehyde; they do not respond to 200 ppmv pentyl alcohol, pentylamine, acetone, ethanol, and water vapor. This study demonstrates the potential applications of doped CLCs as low-cost and portable gas sensors. © 2011 American Chemical Society. | |
dc.description.uri | http://libproxy1.nus.edu.sg/login?url=http://dx.doi.org/10.1021/ac200589k | |
dc.source | Scopus | |
dc.type | Article | |
dc.contributor.department | CHEMICAL & BIOMOLECULAR ENGINEERING | |
dc.description.doi | 10.1021/ac200589k | |
dc.description.sourcetitle | Analytical Chemistry | |
dc.description.volume | 83 | |
dc.description.issue | 13 | |
dc.description.page | 5253-5258 | |
dc.description.coden | ANCHA | |
dc.identifier.isiut | 000292280900033 | |
Appears in Collections: | Staff Publications |
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