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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
【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%.
【Abstract】 s :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;
【Key words】 chemically modified electrode; cobalt phthalocyanine; dissolved oxygen;
【Key words】 chemically modified electrode; cobalt phthalocyanine; dissolved oxygen;
- 【文献出处】 高师理科学刊 ,Journal of Science of Teachers’ College and University , 编辑部邮箱 ,2009年02期
- 【分类号】O661.1
- 【被引频次】3
- 【下载频次】162