【摘要】 本文用玻碳电极为基体制成了8-羟基喹啉修饰电极,研究了铊在该电极上的阴极溶出伏安特性,并用于痕量铊的测定。在5.0×10^-10～1.0×10^-8M Tl（I）的浓度范围内与峰高呈良好的线性关系。对电极作用的机理进行了分析探讨,认为电极性能的改进主要是由电极表面的络合吸附性能决定的。更多还原

【Abstract】 The oxine modified electrode is prepared on the basis of glassy carbon electrode and the process is simple. The cathodic stripping voltammetric characteristic of Tl（Ⅰ）on the modified electrodes is studied and the method has been applied of the determination of trace Tl（Ⅰ）. There is a good linear relationship between the concentration of Tl（Ⅰ）and peak height in the range of 5. 0×10^-10 to 1. 0×10^-8 mol/L for Tl（Ⅰ）. Moreover, the reaction mechanism of the modified electrodes is discussed and it is considered that the improvement of characteristics of the electrodes is dependent upon the complexing-adsorbing property of the electrode surface.更多还原