高等学校化学学报

高等学校化学学报 ›› 1989, Vol. 10 ›› Issue (1): 101.

• 研究简报 • 上一篇    下一篇

镍、钴与Zincon的络合吸附波研究--铜精矿中微量镍、钴的同时测定

林逸兰, 蔡素拉, 何可仁   

  1. 华侨大学应用化学系
  • 收稿日期:1986-06-05 出版日期:1989-01-24 发布日期:1989-01-24

Investigation of Adsorptivt-Complex Waves of Nickel and Cobalt with Zincon --Consecutive Determination of Trace Nickel and Cobalt in Copper Ore Concentrate

Lin Yilan, Cai Sula, He Keren   

  1. Department of Chemistry, Hua Ghiao University, Quanzhou
  • Received:1986-06-05 Online:1989-01-24 Published:1989-01-24

PDF (PC)

被引次数

7

摘要： 有关利用络合物的极谱催化波连续测定镍,钴的报道较少。在研究铜-Zincon的极谱行为时,我们发现NH4Cl-Na2SO3(pH=6.5～7.5)底液中当Zincon浓度>4×10-5·mol/L时,单扫描示波极谱仪上有两个峰,其峰电位分别为-0.42V和-0.56v.

关键词: 镍, 钴, 锌试剂, 铜精矿, 示波极谱法

Abstract: In the solution of 4 × 10-5mol/L Zincon-o.4mol/LNH4Cl-0.6% Na2SO3two sensitive adsorptive-complex waves of Ni-Zincon and Co-Zincon were observed by single-sweep polarography. The peak potentials of the waves are -0.84V and -0.96V (vs. SCE), respectively. Various conditions of adsorptive-complex waves of Ni and Co in this system were studied; and the properties of these waves were investigated. The compositions of the complex of Ni and Co with Zincon also were determined to be 1:1.

Key words: Nickel, Cobalt, Zincon, Copper ore concentrate, Oscillographic polaro-graphy

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