CJCU

Chem. J. Chinese Universities ›› 2003, Vol. 24 ›› Issue (3): 398.

• Preface • Previous Articles     Next Articles

Preparation of PVC Membrane Electrode Modified by Novel Calix[4]arene Derivative and Electrochemical Recognition for Ag~+ in Acidic Solution

LU¨ Jian-Quan1,2, HE Xi-Wen1, ZENG Xian-Shun3, WAN Qi-Jin2, ZHANG Zheng-Zhi3   

  1. 1. College of Chemistry, Nankai University, Tianjin 300071, 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:2002-06-07 Online:2003-03-24 Published:2003-03-24

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Abstract: Novel PVC membrane glassy carbon electrode modified by 25,27-dihydroxy-26,28-bis(3-benzothiazolylthiapropoxy)-5,11,17,23-tetra-tert-butyl calixarene(CAL-GCE) was firstly reported. The preparation method, voltammetric characteristic of the modified electrode and application in recognition for metal ions were investigated. The results show that the CAL-GCE has a selective voltammetic response to silver ion in 0.2 mol/L HNO3 solution and can be applied in analysis. The calibration curve of Ag + ion covered a range of 5.0×10-8-1.3×10-6 mol/L, and the detection limit of the presented method for Ag + ion was 3.8×10-8 mol/L. The method was simple, sensitive and reliable. The mechanism of the interaction of this system was also discussed.

Key words: Calixarene derivative, Modified glassy carbon electrode, Voltammetric recognition, Silver ion

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