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%.
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
关键词
化学修饰电极
钴酞菁
溶解氧
chemically modified electrode
cobalt phthalocyanine
dissolved oxygen
