hydroquinol

The metol content and the hydroquinol content in developer solution were analyzed by potential spectrum method.During this analysis, two components were continuously titrated at the same time.

采用一种新的化学析方法电位波谱法析显影液中的米吐尔和对苯二的含量,在研过程中实现了这两种成的连续滴定析。