高等学校化学学报

高等学校化学学报 ›› 2005, Vol. 26 ›› Issue (2): 238.

• 研究简报 • 上一篇    下一篇

钳状杯[4]芳烃为探针的固态PVC膜汞离子选择性电极

吕鉴泉1,2, 曾宪顺3, 艾娟2, 庞代文1   

  1. 1. 武汉大学化学与分子科学学院,武汉 430072;
    2. 湖北师范学院化学系,黄石 435002;
    3. 南开大学元素有机化学国家重点实验室,天津 300071
  • 收稿日期:2003-11-18 出版日期:2005-02-10 发布日期:2005-02-10
  • 通讯作者: 庞代文(1961年出生),男,博士,教授,博士生导师,从事生物医学分析和生物电化学研究.E-mail:dwpang@whu.edu.cn E-mail:dwpang@whu.edu.cn
  • 基金资助:

    中国博士后基金(批准号:2002032211);湖北省教育厅科研基金(批准号:2002Z0004)资助

A Solid-state Ion-selective Electrode for Mercury with Tweezer-type Calix[4]arene Derivative as the Probe on PVC Film

Lv Jian-Quan1,2, ZENG Xian-Shun3, AI Juan2, PANG Dai-Wen1   

  1. 1. College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China;
    2. Department of Chemistry, Hubei Normal University, Huangshi 435002, China;
    3. State Key Laboratory of Elemento-Organic Chemistry, Nankai University, Tianjin 300071, China
  • Received:2003-11-18 Online:2005-02-10 Published:2005-02-10

PDF (PC)

被引次数

17

关键词: 杯芳烃, 固体PVC膜, 离子选择性电极, 汞离子

Abstract: A new solid-state mercury ion-selective electrode was prepared by directly coating the surface of a glassy carbon electrode with tetrahydrofuran solution containing PVC, 25,27-dihydroxy-26,28-bis[(1'-naphthalene) selenopropoxy] calix[4]arene, dioctyl phthalate and potassium tetrakis(4-chlorophenyl) borate. The response of the electrode is linear with a good Nernstian slope of 31.5 mV/decade over an Hg2+ ion concentration range of 5.0×10-9—5.0×10-2 mol/L and a detection limit of 1.0×10-9 mol/L. The response time to achieve a 95% steady potential for Hg2+ detection is less than 30 s, and the electrode is suitable for use within the pH range of 2—4. The selectivity for Hg2+ relative to several alkali, alkaline earth, transition and heavy met al ions is good. The mechanism of the potential response of this system was also discussed.

Key words: Calixarene derivative, Solid-state PVC film, Ion-selective electrode, Mercury ion

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