吡咯烷二硫代氨基甲酸铵用于金属离子的示波测定  

Application of Pyrrolidine Dithiocarbamic Ammonium in Oscillographic Determination of Metal Ions

作　　者：郑建斌[1] 高敏[1] 傅业伟 高鸿[1] 

机构地区：[1]西北大学分析科学研究所,西安710069

出　　处：《应用化学》2000年第6期636-638,共3页Chinese Journal of Applied Chemistry

基　　金：国家自然科学基金!(2 9775 0 18);陕西省自然科学基金!(98H0 7);陕西教委专项基金资助项目

摘　　要：Pyrrolidine dithiocarbamic ammonium can cause a sensitive incision on the cathodic branch of dE/dt-E oscillogram at -0.80 V(vs.SCE) in 0.1 mol/L KCl solution. When Co. 2+、Ni. 2+、Cd. 2+、Ga. 3+ and In. 3+ are present in KCl solution containing pyrrolidine dithiocarbamic ammonium the depth of the incision varies. A linear relationship between the incision depth and concentration of the metal ions is established and the second-order differential simple oscillographic voltammetry is applied to quantitative determination for these ions. The cobalt ion in molecular sieve is also determined with satisfactory results.Pyrrolidine dithiocarbamic ammonium can cause a sensitive incision on the cathodic branch of dE/dt-E oscillogram at -0.80 V(vs.SCE) in 0.1 mol/L KCl solution. When Co. 2+、Ni. 2+、Cd. 2+、Ga. 3+ and In. 3+ are present in KCl solution containing pyrrolidine dithiocarbamic ammonium the depth of the incision varies. A linear relationship between the incision depth and concentration of the metal ions is established and the second-order differential simple oscillographic voltammetry is applied to quantitative determination for these ions. The cobalt ion in molecular sieve is also determined with satisfactory results.

关 键 词：金属离子 钴 示波分析 伏安法 二硫代氨基甲酸铵 

分 类 号：O657.1[理学—分析化学] O614.813[理学—化学]