高等学校化学学报 ›› 1994, Vol. 15 ›› Issue (1): 31.

• 论文 • 上一篇    下一篇

锗-芦丁极谱络合吸附波的研究

张成志, 贺维军, 李南强   

  1. 北京大学化学系, 北京, 1000871
  • 出版日期:1994-01-24 发布日期:1994-01-24
  • 基金资助:

    国家自然科学基金

Studies on the Polarographic Adsorptive Complex Wave of Germanium-Rutin

ZHANG Cheng-Zhi, HE Wei-Jun, LI Nan-Qiang   

  1. Department of Chemistry, Peking university, Beijing, 100871
  • Online:1994-01-24 Published:1994-01-24

摘要: 在醋酸盐缓冲底液中,可获得Ge-芦丁的2个灵敏的络合吸附波P1和P2,分别对应于络合物中Ge(Ⅳ)还原至Ge(Ⅱ)再还原至Ge(0).两波的检出限分别为8.0×10-8和4.0×10-8mol/L.测得电活性络合物的组成为Ge:Rt=1:3,表面电极反应的速率常数(ks)1=10.5s-1,(ks)2=1.9s-1.还测定了有机锗口服液中锗的含量。

关键词: 锗, 芦丁, 极谱络合吸附波, 单扫极谱

Abstract: In an acetate buffer solution,at pH 5.4,two sensitive adsorptive complex waves of Ge(Ⅳ)-rutin were obtained by using single-sweep polarography.They are stepewise reduction of Ge(Ⅳ) to Ge(Ⅱ) to Ge(0) in the complex,The detection limits of two waves are 8.0×10-8 mol/Land 4.0×10-8mol/L,respectively.The composition of the electroactive complex Ge(Ⅳ):Rt=1:3 was determined.The rate constants of surface electrode reaction(k)1=10.5s-1,(ks)2=1.9s-1 were determined.The proposed method was applied to the determination of germanium In organic gemanium tonic.

Key words: Germanium, Rutin, Polarographic adsorptive complex wave, Single-sweep polarography

TrendMD: