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Browsing by Author "鍾舜宇"

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    硼酸酯修飾電極-製備與探討
    (2010) 鍾舜宇; Shun-Yu Chung
      硼酸衍生物,如3-aminophenylboronic acid (簡稱APBA),因可與醇類化合物進行反應而形成硼酸酯,本論文因而以之製備具生化應用潛力的蒽醌修飾電極。我們首先利用偶氮修飾法將APBA修飾於電極如導電ITO玻璃或石墨片(HOPG),再將醌類化合物還原成為羥基化合物,使之與硼酸鍵結形成硼酸酯而穩定吸附於電極表面,其中所修飾的醌類化合物有pyrroquinoline quinone (簡稱PQQ )、9,10-phenanthrenequinone(簡稱CCQ)以及1,10-phenanthroline-5,6-dione(簡稱NNQ)。對於這些電極,我們分別以電化學技巧與光譜分析法探討其性質與應用潛力,如對銅離子的偵測。實驗結果顯示PQQ修飾電極對Cu2+離子具有特殊親合力,因此可藉以偵測Cu2+離子,偵測極限約為500*10-6 M。

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