摘要
本文研究了酞菁钴碳糊修饰电极的研及水中溶解氧的测定.利用光谱纯碳粉,加入适量的酞菁钴,混合均匀压成酞菁钴碳糊电极.此电极对氧有很强的催化活性,测定灵敏度高,干扰少,对少数干扰离子可加入高锰酸钾消除．重复测定水样,所得结果与碘量法相近,误差小于±5%,结果满意.
This thesis discussed the development of cabalt phthalocyanine graphite pow-dered chemically modified electrodes and the determination of dissolved oxygen in water. Using spectroseopically pure powdered carbon, add in just the right amount of cobalt phthalocyanine, and mit them up to cobalt phthalocyanine powdered graphite chemically modified electrodes. This electrode has powerful catalytic activity to oxygen. It has high sensitivity and less interference. Adding potassium permangnate can eliminate the interfevence of few ions. After determining repcatelly, the conclusionis dose with the classi-cal iodometric titration. The error between the two methods is less than ?5%. All of this are satisfactory.
出处
《黑龙江大学自然科学学报》
CAS
1991年第2期75-78,92,共5页
Journal of Natural Science of Heilongjiang University
关键词
水
溶解氧
测定
酞菁钴
修饰电极
cobalt phthalocyanine, chemically modified electrodes, dissolver oxygen.
