2,9-二氯-1,10-邻菲啰啉碳糊电极测定痕量银  

Determination of Silver (Ⅰ) by Chemically Modified Carbon Paste Electrode of 2,9-Dichloro-1,10-o-phenanthroline

作　　者：黄杉生[1] 李苾芬[1] 林辉概[1] 廖双一 张增荣[1] 俞汝勤[1] 

机构地区：[1]湖南大学化学化工系,长沙410082

出　　处：《分析化学》1993年第12期1423-1425,共3页Chinese Journal of Analytical Chemistry

基　　金：国家自然科学基金;国家教委资助优秀青年教师基金

摘　　要：合成了2,9-二氯-1,10-邻菲啰啉,并以此化合物研制了对银有灵敏响应的碳糊电极。在硝酸介质中,银离子浓度在1×10^(-9)～5×10^(-7)mol/L范围内与阳极溶出峰电流呈良好的线性关系,线性相关系数0.996。电极用于电镀废水中银的测定,结果令人满意。A chemically modified carbon paste electrode was prepared by incorporating appropriate quantities of 2,9-dichloro-1, 10-o-phenanthroline directly into the paste mixture. Trace silver (Ⅰ) can be preconcen-trated on the electrode. The method showed good linearly for 1 ×10-9-5×10-7 mol/L silver(Ⅰ) in nitric acid medium. The electrode was verified by the determination of silver(Ⅰ) in waste water.

关 键 词：修饰电极 银 伏安法 二氯邻菲罗啉 

分 类 号：O614.122[理学—无机化学]