聚四氨基钴酞菁修饰电极测定水中溶解氧  

Determination of dissolved oxygen in water by polymeric cobalt tetraaminophthalocyanine modified electrode

作　　者：孟璐[1] 杨铁金[1] 王丽华[1] 解英[1] 

机构地区：[1]齐齐哈尔大学化学与化学工程学院,黑龙江齐齐哈尔161006

出　　处：《高师理科学刊》2009年第2期81-83,97,共4页Journal of Science of Teachers＇College and University

摘　　要：采用电化学聚合法制备聚四氨基钴酞菁修饰电极,并用循环伏安法研究其对氧的电催化作用.实验表明,修饰电极在pH=5柠檬酸-柠檬酸钠缓冲溶液中,峰电流与氧质量浓度在1.6～8.0mg/L范围内呈线性关系,平行6次测定氧体积分数RSD=1.7%,回收率为98.02%～111.68%.Polymeric cobalt tetraaminophthalocyanine was prepared by electropolymerization and the electrochemistry properties toward dioxygen reduction were studied using cyclic voltammetry. The result indicated that the modified electrode was in pH=5 citric acid-sodium citrate buffer solution, the peak current was proportional to the concentration of dissolved oxygen in the range from 1.6 - 8.0 mg/L, for six parallel measurements of dissolved oxygen, the relative standard was found to be 1.7%, the rate of recovery was between 98.02%-111.68%.

关 键 词：化学修饰电极 钴酞菁 溶解氧 

分 类 号：O675.1[理学—化学]