【摘要】 研究了新配体TTBA与二价铜离子生成配合物的光度特征和电化学特征。在较宽的pH范围内 ,新试剂和铜离子形成 1∶2的棕黄色配合物 ,并且在一定范围内具有良好的线性关系。通过电化学方法和光度法都可以证明 ,文中合成的新试剂氮三没食子酸三乙胺测定Cu2 +具有很高的灵敏度和选择性 ,在实际生产中具有一定的应用价值更多还原

【Abstract】 A brownish yellow colored complex was formed by the complexation reaction of Cu(Ⅱ) ion with the new reagent TTBA, in a medium of pH 4～7. Linearity between the absorbance and concentration of Cu(Ⅱ) was found in the range of 5×10 -8 to 1×10 -5 mol·L -1 and the mole ratio of the complex was found to be Cu∶R=1∶2, by both the photometric and electrochemical methods. The electrochemical behavior of the complex was also studied. The proposed method has been applied to the determination of copper in samples such as tea, human hair etc.更多还原