化学学报 ›› 1961, Vol. 27 ›› Issue (1): 10-13. 上一篇    下一篇

论文

用紫没食子素比色法测定少量锗

史慧明, 李楚芝, 张锦昌   

  1. 南开大学化学系
  • 收稿日期:1959-12-02 出版日期:1961-03-15 发布日期:2013-06-03

COLORIMETRIC DETERMINATION OF SMALL AMOUNTS OF GERMANIUM WITH PURPUROGALLIN

SHIH HUEI-MING, LI TSU-CHI, CHANG CHIN-CHONG   

  1. Department of Chemistry, Nankai University
  • Received:1959-12-02 Online:1961-03-15 Published:2013-06-03

1.本文提出以紫没食子素测定锗的比色法和测定烟道灰中的锗含量.2.用连续变更浓度法和斜度比法测定化合物中[Ge]:[试剂]=1:2.3.本试剂的合成很简易,而与锗所形成的化合物较之锗与苯芴酮的化合物更为稳定.

Purpurogallin is pruposed for culurimetric determination of gcrmauium. A stable red color is formed when germanium solution is treated with purpurogallin solution in the presence of 2.8-3.0N sulfuric acid and gum arahic. Beer's law holds for the range 10-150 γ Ge/25ml. The ratio of germanium to reagent in the colored complex is 1:2. This method has been applied to the determination of germanium in some flue dusts with satisfactory results.