引用本文:
胡乃非, 王金富, 李启隆. 镍(Ⅱ)-硫代氨基脲体系的络合吸附波[J]. 应用化学,
1987, 4(4): 77-79.
Citation: Hu Naifei, Wang Jinfu, Li Qilong. ON THE ADSORPTIVE-COMPLEX WAVE OF NICKEL(Ⅱ) WITH THIOSEMICARBAZIDE[J]. Chinese Journal of Applied Chemistry, 1987, 4(4): 77-79.
Citation: Hu Naifei, Wang Jinfu, Li Qilong. ON THE ADSORPTIVE-COMPLEX WAVE OF NICKEL(Ⅱ) WITH THIOSEMICARBAZIDE[J]. Chinese Journal of Applied Chemistry, 1987, 4(4): 77-79.
镍(Ⅱ)-硫代氨基脲体系的络合吸附波
摘要:
利用Ni(Ⅱ)的络合吸附波测定微量镍,文献[1,2]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。
English
ON THE ADSORPTIVE-COMPLEX WAVE OF NICKEL(Ⅱ) WITH THIOSEMICARBAZIDE
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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