高等学校化学学报

高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (7): 748.

• 研究简报 • 上一篇    下一篇

汞-钯试剂络合物极谱吸附波的研究

高志强, 孙延一, 赵藻藩   

  1. 武汉大学化学系
  • 收稿日期:1988-12-15 出版日期:1990-07-24 发布日期:1990-07-24
  • 通讯作者: 高志强

Studies on the Polarographic Adsorptive Wave of Mercury ( Ⅱ )-Palladium Reagent Complex

Gao Zhiqlang, Sun Yanyi, Zhao Zaofan   

  1. Department of Chemistry, Wuhan University, Wuhan
  • Received:1988-12-15 Online:1990-07-24 Published:1990-07-24

PDF (PC)

被引次数

6

摘要： 在极谱催化波和吸附波方面,国内进行了大量的研究,但汞的络合物吸附波至今未见报道[1]。

关键词: 吸附波, 汞的测定, 钯试剂

Abstract: The polarographic adsorptive wave of Hg ( Ⅱ )-palladium reagent (3-hydroxy-1-p-sul-fonatophenyl-3-phenyltriazene) complex in 0. 05 mol/L Na2B4O7 medium was studied for the first time and a sensitive SSP(single sweep polarography) method for the determination of trace of Hg( Ⅱ ) has been developed. The complex, corresponding to Hg(R)2 with logβ'=8. 30, is strongly, adsorbed on the surface of the mercury electrode. The polarographic wave is attributed to the reduction of Hg ( Ⅱ ) In the complex to Hg. The linear range is from 7×10-8 to 1×10-5 mol/Land the detection limit is 4 × 10-8 mol/L. The method has been used to determine Hg(Ⅱ ) in water and biological samples.

Key words: Adsorptive wave, Determination of mercury, Palladium reagent

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