Maximum Suppressor Research Articles

ポーラログラフ法による金属分析法の研究（第2報）ポーラログラフ法による銑鉄，普通鋼，特殊鋼中のCu迅速分析法の研究並びに簡易分析装置の試作

The author has investigated in detal the necessary conditions for a rapid polarographic determination of copper in iron and steel, and obtained a new simplified method requiring only 20 min, the outline of which is as follows: dissolve 1 g of sample in 10∼15 cc of HNO3(1:1), pour it slowly and stir to make 60 cc of the supporting electrolyte solution (4 N-NH4 OH, 1 N-NH4Cl), filter, take 5 cc of the filtrate, add 2 drops of 1 percent solution of gelatine as maximum suppressor and 10 drops of saturated solution of Na2SO3 as oxygen eliminator and copper is determined polarographically. The correction for the temperature is made by the use of a correction equation. This a new simplified apparatus for more rapid analysis is devised. By this method copper can be determined in about 10 minutes.

Additions and Corrections-Some Polargraphic Effects of Gelatin and Other Maximum Suppressors

Additions and Corrections-Some Polargraphic Effects of Gelatin and Other Maximum Suppressors

Some Polarographic Effects of Gelatin and Other Maximum Suppressors

Some Polarographic Effects of Gelatin and Other Maximum Suppressors