煤中锗的测定

Determination of Germanium in Coal

阐述了煤中锗的存在形式及测定方法原理。我国标准中煤中锗煤样灰化后,锗与苯芴酮在稀酸中反应生成不溶于水的橘色络合物,当有悬浮剂有时呈透明液体,在有机溶剂中呈真溶液,对煤中锗进行了比色测定,研究了相应的测试条件,并对影响测试结果准确性的若干因素进行探讨。

The existence form ofgermanium in coal and the measurement principle of germanium in coal were expounded. In China standard,after coal samples ashing, germanium and benzene fluorenone in dilute acid reacted to orange complex which was that soluble in water,and was a transparent liquid with a suspending agent and a true solution in organic solvent. The colorimetric determination germanium in coal was tested,the corresponding test conditions were studied, several factors influencing the accuracy of the test results were discussed.