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    题名: 重金屬感應分子合成及其在化學感測之應用研究
    其它题名: Synthesis of heavy metal-sensing organic compounds and theirs applications for detecting probes
    作者: 張皓翔;Chang, Haoh-siang
    贡献者: 淡江大學化學學系碩士班
    李世元;Lee, Adam Shih-yuan
    关键词: 鉗合;滴定;重金屬;位移;Chelating;Titration;Heavy Metal;Shift
    日期: 2007
    上传时间: 2010-01-11 02:34:28 (UTC+8)
    摘要: 設計化學感測分子以噻吩-噻唑和噻唑-噻唑為核心架構,外層接上
    以鄰、間、對三個不同位置的吡啶官能基來修飾。先測量其UV-Vis 最大
    吸收波長,接著以有機酸 三氟醋酸 (Trifluoroacetic acid, TFA)配在不同
    溶劑中來滴定我們合成的化學感測型式化合物,觀察其UV 是否有發生
    位移及其顏色有無改變。再選用10 種不同金屬離子的無機鹽類來滴定我
    們的化合物來觀察其變化。在用酸滴定時,溶劑選用甲醇時對酸有著最
    好的偵測靈敏度,DMSO 次之,而THF 最差。而偵測金屬離子方面,只
    有接上對位的吡啶分子才能鉗合到金屬離子,而它們對於兩價汞的金屬
    離子有著極佳的選擇性,即使在充斥著其他金屬離子的環境下,它們依
    然不受干擾。
    The chemosensing molecule which was designed and based on the structural core of thiophene-thiazole and thiazole-thiazole and the outlayer modification by connecting with ortho-、meta- and para-pyridine. The maximum UV-Vis wavelength was measured and titration with organic acid, TFA(Trifluoroacetic acid), in different solvents were investigated, and the best choice was observed to be methanol. Ten of metal(I) and metal(II) ions in methanol were investigated for the chelating capabilities with the designed molecules. The para-pyridyl attached compounds were observed to behave as the highly specific sensing probe to mercury(II) ion even other metals existed in detecting system.
    显示于类别:[化學學系暨研究所] 學位論文

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