溶剂浮选交流示波极谱滴定法测定碘  

Determination of Iodine by Solvent Floatation-Oscillopolarographic Titration

作　　者：陈兆鹏[1] 陈声宗[1] 张正奇[1] 梁向华 

机构地区：[1]湖南大学化学化工系,长沙410082

出　　处：《分析试验室》1992年第5期38-39,共2页Chinese Journal of Analysis Laboratory

摘　　要：本文提出以溴化十六烷基三甲基铵(CTMAB)为捕收剂,溶剂浮选交流示波极谱滴定法测定碘的新方法。在pH4.40的HAc-NaAc缓冲底液中,碘离子在交流示波极谱图上呈现一灵敏切口,用AgNO_3标准液滴定至切口消失以指示滴定终点,并用于食盐中微量碘的测定,结果满意。The determination of trace iodine by solvent floatation-oscillopolarographic titration is carried out using cetyltrirnethylammonium bromide (CTMAB) as collector. In a pH4.40 HAc-NaAc buffer solution microamounts ofodide are titrated with AgNO_3 standard solution to the diappearance of incision on an a. c. oscillopolarogram to indicate the endpoint. The method has been used successfully for the determination of trace iodine in table salts.

关 键 词：溶剂浮选 示波极谱 滴定 食盐 碘 

分 类 号：O613.44[理学—无机化学]