藉高锰酸钾氧化双乙酰的化学发光反应测定微量锰  

Determination of Micro Amounts of Manganese With the Chemiluminescence Reaction of Diacetyl and Potassium Permanganate

作　　者：朱昌青[1] 王伦[1] 李永新[1] 高峰 

机构地区：[1]安徽师范大学化学系,芜湖241000

出　　处：《分析化学》1997年第4期387-390,共4页Chinese Journal of Analytical Chemistry

基　　金：安徽省教委科研基金

摘　　要：研究了高锰酸钾氧化双乙酰的化学发光反应。根据微量Ｍｎ２＋对上述体系化学发光出峰时间的影响，建立了测定 Ｍｎ２＋的分析方法。该法线性范围为 １．０ × １０－４～８．０ × １０－７ｍｏｌ／Ｌ，相对标准偏差为 ３．５％，检出限为 ６．０×１０－８ｍｏｌ／Ｌ。应用于合金中锰的测定，结果良好。A chemiluminescence reaction between diacetyl and potassium permanganate is in- vestigated. This analytical method for the determination of Mn(Ⅱ) is based on the effect of the micro quantity of Mn(Ⅱ) on the peak appearance time. The linear range of the method is 1. 0×10-4-8. 0 ×10-7 mol/L; the RSD is 3. 5% ; the detection limit is 6. 0 ×10-8 mol/L. The proposed method has been applied to the determination of manganese in alloys with sat- isfactory results.

关 键 词：化学发光 双乙酰 锰 高锰酸钾 氧化 

分 类 号：O614.711[理学—无机化学] TG115.314[理学—化学]