含硫杯[4]芳烃衍生物修饰电极伏安行为的研究  

Voltammertric behaviour study of PVC membrane electrode modified by calix [4] arene derivative

作　　者：夏新泉[1] 张海丽[1] 吕鉴泉[1] 

机构地区：[1]湖北师范学院化学与环境工程系,湖北黄石435002

出　　处：《化学研究与应用》2006年第7期848-850,共3页Chemical Research and Application

摘　　要：Glassy carbon electrode modified by 25,27-dihydroxy-26,28-di（2’-Methyl-6-hydroxypyrimidine）thiopentaoxylcalix[4] arene-PVC was made.The electrochemical character of the modified electrode was investigated by Cyclic Votalmmetry in HCl,HNO3 and H2SO4.Effects of concentration of HCl and scan rate were discussed.The modified Glassy carbon electrode was found to be excellent respondence to Cd2+in 1mol/L HCl.The experiment parameters such as accumulation potential and time and scan rate were determined on Cadmium.It was found that the linear equation is Ip（μA）=10.95+2.430 lgc（mol/L）（r=0.9968）.The concentration is in the range from 5.0×10-3to 8.0×10-7mol/L and the detect limit is 8.0×10-7mol/L.The method has been applied to the analysis of synthetic sample.The recovery of Cd2+is 98%.Glassy carbon electrode modified by 25, 27 - dihydroxy - 26, 28 - di （2＇ - Methyl - 6 - hydroxypyrimidine） thiopentaoxylcalix [4] arene - PVC was made. The electrochemical character of the modified electrode was investigated by Cyclic Votalmmetry in HCl, HNO3 and H2SO4. Effects of concentration of HCl and scan rate were discussed. The modified Glassy carbon electrode was found to be excellent respondence to Cd^2＋ in lmol/L HCl. The experiment parameters such as accumulation potential and time and scan rate were determined on Cadmium. It was found that the linear equation is Ip （μA） = 10. 95 ＋ 2. 430 lgc （mol/L） （r=0. 9968）. The concentration is in the range from 5.0 × 10^-3 to 8. 0 × 10^-7 mol/L and the detect limit is 8. 0 × 10^-7 mol/L. The method has been applied to the analysis of synthetic sample. The recovery, of Cd^2＋ is 98%.

关 键 词：含硫杯芳烃衍生物 化学修饰电极 伏安法 镉离子 

分 类 号：O657.1[理学—分析化学]