节点文献
25,27-二羟基-26,28-二苯硫丙氧基-杯[4]芳烃-PVC修饰膜电极的伏安特性及其对金属离子的响应
Fabrication and voltammetric character study of glassy carbon electrode modified by 25,27-dihydroxy-26,28-bis(benlylthiapropoxy) calixarene-PVC
【摘要】 制备了 2 5 ,2 7-二羟基 -2 6,2 8-二苯硫丙氧基 -杯 [4]芳烃 -PVC修饰膜电极。研究了该修饰电极在碱性、酸性介质中的伏安特性。实验表明 :修饰电极在 2mol·L- 1NaOH中的氧化还原过程为不可逆氧化过程 ,而乙醇的存在使碱性条件下的氧化过程受到抑制 ;在 1mol·L- 1HCl体系中 ,修饰电极具有良好的电化学活性 ,在 -1 .0V~ 0 .6V范围内有一对准可逆的氧化还原峰 ,并且在该条件下修饰电极对Zn2 + 、Pb2 + 、Cd2 + 、Hg2 + 、Ag+ 五种金属离子有良好的识别响应。
【Abstract】 Glassy carbon electrode modified by 25,27-dihydroxy-26,28- bis(benlylthiapropoxy) calixarene-PVC has been made. The electrochemical character of the modified electrode was investigated by Cyclic Voltammetric in NaOH-ethanol?NaOH and HCl solution. Electrode modified by 25,27-dihydroxy-26,28- bis(benlylthiapropoxy) calixarene -PVC was found that there were excellent respondences to Zn 2+ ?Ag +?Cd 2+ ?Hg 2+ ?Pb 2+ in HCl. The applied voltage?time and pH of electrolyte were found to affect stripping peak height.
【Key words】 dihydroxy-26,28- bis(benlylthiapropoxy) calixarene; chemical modified electrode; cyclic Votalmmetry;
- 【文献出处】 湖北师范学院学报(自然科学版) ,Journal of Hubei Normal University(Natural Science) , 编辑部邮箱 ,2003年03期
- 【分类号】O657.1
- 【被引频次】2
- 【下载频次】63