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ID 33030
フルテキストURL
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著者
Choengchan, N. Flow Innovation-Research for Science and Technology Laboratories, Department of Chemistry, Faculty of Science, Mahidol University
Mantim, T. Flow Innovation-Research for Science and Technology Laboratories, Department of Chemistry, Faculty of Science, Mahidol University
Wilairat, P. Flow Innovation-Research for Science and Technology Laboratories, Department of Chemistry, Faculty of Science, Mahidol University
Dasgupta, P. K. Department of Chemistry and Biochemistry, Texas Tech University
本水 昌二 Department of Chemistry, Faculty of Science, Okayama University
Nacapricha, D. Flow Innovation-Research for Science and Technology Laboratories, Department of Chemistry, Faculty of Science, Mahidol University
抄録
This work presents new design of a gas diffusion unit, called 'membraneless gas diffusion (MGD) unit', which, unlike a conventional gas diffusion (GD) unit, allows selective detection of volatile compounds to be made without the need of a hydrophobic membrane. A flow injection method was developed employing the MGD unit to determine ethanol in alcoholic drinks based on the reduction of dichromate by ethanol vapor. Results clearly demonstrated that the MGD unit was suitable for determination of ethanol in beer, wine and distilled liquors. Detection limit (3S/N) of MGD unit was lower than the GD unit (GD: 0.68%, v/v; MGD: 0.27%, v/v). The MGD design makes the system more sensitive as mass transfer is more efficient than that of GD and thus, MGD can perfectly replace membrane-based designs.
キーワード
membraneless gas diffusion
flow injection
ethanol determination
liquor
spectrophotometry
備考
Published with permission from the copyright holder.
This is published in Analytica Chimica Acta, 2006 Vol.579 Issue.1 pp.33-37
Publisher URL: http://dx.doi.org/10.1016/j.aca.2006.07.018
Direct access to Thomson Web of Science record
(C)2006 by Elsevier B.V.
発行日
2006-10-02
出版物タイトル
Analytica Chimica Acta
579巻
1号
出版者
Elsevier Science B.V.
開始ページ
33
終了ページ
37
ISSN
0003-2670
NCID
AA00524834
資料タイプ
学術雑誌論文
言語
English
著作権者
Elsevier Science B.V.
論文のバージョン
author
査読
有り
DOI
Web of Sience KeyUT
Submission Path
analytical_chemistry/27