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https://tkuir.lib.tku.edu.tw/dspace/handle/987654321/104685
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| 題名: | Enzymeless flow injection analysis of 2, 4, 6-trichlorophenol (2, 4, 6-TCP) based on preoxidation by ammonium cerium (IV) nitrate |
| 作者: | Wang, Jun-Sheng;Chen, Pei-Yen;Huang, Tsung-Tao;Lin, Meng-Shan |
| 關鍵詞: | enzymeless;flow injection analysis;trichlorophenol;ammonium cerium (IV) nitrate |
| 日期: | 2012-10-01 |
| 上傳時間: | 2016-01-06 11:07:09 (UTC+8) |
| 摘要: | Enzymeless flow injection analysis of 2,4,6-trichlorophenol (2,4,6-TCP) based on preoxidation by ammonium cerium (IV) nitrate will be presented in this work. A preoxidation scheme is applied for 2,4,6-TCP determination without any enzyme treatment. This preoxidation scheme can provide a determination method with low cost and non-conductive polymerization reaction of 2,4,6-TCP. In proposed scheme, the 2,4,6-TCP is oxidized to 2,6-dichloro-1,4-benzoquinone by ammonium cerium (IV) nitrate and the 2,6-dichloro-1,4-benzoquinone can be detected at low reduction potential. The linear range of 2,4,6-TCP determination was 0.4 to 750 M with correlation coefficient (R2) 0.9999 and the estimated detection limit (S/N=3) was 40 nM which were demonstrated by flow injection analysis. Twenty successive detect of 100 M 2,4,6-TCP showed the relative standard deviation was 1.56%. Several 2,4,6-TCP structure-like compounds were studied as interferences including 2,4-dichlorophenol, 2-chlorophenol, phenol and 4-aminophenol. No obviously influences were observed. Two water samples which were collected from local farm and pool were adopted as analytical application. The recoveries of two water samples are 105.2% and 107.5%, respectively. An easy operation and enzymeless treatment detection scheme of 2,4,6-TCP is illustrated in this work |
| 關聯: | International Journal of Electrochemical Science 7, pp.9113 - 9121 |
| 顯示於類別: | [化學學系暨研究所] 期刊論文
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