中华医学超声杂志

应用化学 ›› 1987, Vol. 0 ›› Issue (4): 77-79.

• 研究简报 • 上一篇    下一篇

镍(Ⅱ)-硫代氨基脲体系的络合吸附波

胡乃非, 王金富, 李启隆   

  1. 北京师范大学化学系
  • 收稿日期:1986-10-10 修回日期:1987-01-14 出版日期:1987-08-10 发布日期:1987-08-10
  • 基金资助:
    教育部重点科学技术研究课题

ON THE ADSORPTIVE-COMPLEX WAVE OF NICKEL(Ⅱ) WITH THIOSEMICARBAZIDE

Hu Naifei, Wang Jinfu, Li Qilong   

  1. Department of Chemistry, Beijing Normal University
  • Received:1986-10-10 Revised:1987-01-14 Published:1987-08-10 Online:1987-08-10

PDF

325

被引次数

7

摘要： 利用Ni(Ⅱ)的络合吸附波测定微量镍,文献曾提出若干体系,但 Ni(Ⅱ)-硫代氨基脲(TSC)体系的络合吸附波尚未见报导。本文对该体系采用单扫示波极谱仪进行了试验,获得了灵敏的极谱波,并用多种方法探讨了该体系的机理,认为该极谱波是具有络合吸附波性质的催化前波。

Abstract: In the supporting electrolyte containing 0. 10M potassium hydrogen phthalate at pH4.0,a sensitive derivative peak of nickel(Ⅱ)-thiosemicarbazide complex was found by using single-sweep oscillopolarography. The peak potential is -0.80V (SCE). The change of the peak height with the concentration of Ni(Ⅱ) appeared linear in the range from 2.0×10-7 to 8.0×10-6M. The character of the peak wave has been studied. It is confirmed that the peak wave is a catalytic pre-wave with adsorptive property and the adsorbed species may be Ni(TSC)22+.

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