Selective Electrochemical Recognition of o-Phenylenediol by a Novel Calix[4]arene Derivative  

作　　者：吕鉴泉 张海丽 卢萍 

机构地区：[1]Hubei Key Laboratory of Bioanalytical Technique, Hubei Normal University, Huangshi, Hubei 435002, China

出　　处：《Chinese Journal of Chemistry》2007年第10期1542-1546,共5页中国化学（英文版）

基　　金：Project supported by the Science Foundation of the Education Ministry of China （No. 206096）, the Education Department of Hubei Province （No. Z200522002） and the 0pen Foundation of Hubei Key Laboratory of Biotechnology in Traditional Chinese Medicine （No. 20040201）.

摘　　要：A new type of calixarene-modified electrode has been prepared by directly coating the surface of a glassy carbon electrode with tetrahydrofuran solution containing 25,26,27,28-tetra-（3-amidino thiopropoxy）-5,11,17,23-tetratert-butylcalix[4]arene, and applied to the investigation of electrochemical behavior of phenylenediols. The results showed that the modified electrode could selectively recognize o-phenylenediol, making the over-potential of o-phenylenediol dropped and peak current increased greatly. The anodic peak current is proportional to the concentration of o-phenylenediol in the range of 1.0×10^-5-1.0×10^-4 mol·L^-1 with the detection limit （SIN=3） of 1.0×10^-7 mol·L^-1. The recognizing mechanism, including electrochemical process and binging sites, was also discussed using voltammetry.A new type of calixarene-modified electrode has been prepared by directly coating the surface of a glassy carbon electrode with tetrahydrofuran solution containing 25,26,27,28-tetra-（3-amidino thiopropoxy）-5,11,17,23-tetratert-butylcalix[4]arene, and applied to the investigation of electrochemical behavior of phenylenediols. The results showed that the modified electrode could selectively recognize o-phenylenediol, making the over-potential of o-phenylenediol dropped and peak current increased greatly. The anodic peak current is proportional to the concentration of o-phenylenediol in the range of 1.0×10^-5-1.0×10^-4 mol·L^-1 with the detection limit （SIN=3） of 1.0×10^-7 mol·L^-1. The recognizing mechanism, including electrochemical process and binging sites, was also discussed using voltammetry.

关 键 词：RECOGNITION VOLTAMMETRY o-phenylenediol CALIX[4]ARENE modified electrode 

分 类 号：O646.54[理学—物理化学]