钼(Ⅵ)-水杨基荧光酮络合物吸附波的研究与应用  

Polarographic adsorption wave of molybdenum-salicyflorone complex and its application

作　　者：董文举[1] 李永芳[1] 

机构地区：[1]河南师范大学化学与环境科学学院河南省高等学校环境科学与工程重点学科开放实验室,新乡453002

出　　处：《分析试验室》2004年第10期5-8,共4页Chinese Journal of Analysis Laboratory

摘　　要：在邻苯二甲酸氢钾 HCl 乙醇 水溶液中,钼(Ⅵ) 水杨基荧光酮体系在滴汞电极上,于-1.10V(vs.SCE)处有一良好的极谱波,其二阶导数峰电流与钼(Ⅵ)在8×10-10～6×10-8mol L范围内有良好的线性关系,检出限为5×10-10mol L。研究了极谱波的性质和电极反应机理。该方法已用于水及生物样品的测定。In a buffer solution of potassium biphthalate-HCl, the complex of molybdenum-salicyflorone was adsorbed on the surface of dropping mercury electrode and produced a redution peak at -1.10 V(vs.SCE). Under optimum conditions, the linear range of the concentration of Mo(Ⅵ) with the secondary derivative oscillopolaro graphic peak current was 8×10^(-10)～6×10^(-8) mol/L with the detection limit of 5×10^(-10) mol/L. This method was applied to the determination of molybdenum in water and biological samples with satisfactory results. The mechanism of the electrode process was studied.

关 键 词：钼络合物 水杨基荧光酮 吸附波 电极反应机理 极谱分析 

分 类 号：O614.612[理学—无机化学] O657.14[理学—化学]