采用一种新的化学分析方法电位波谱法分析显影液中的米吐尔和对苯二酚的含量，在研究过程中实现了这两种成分的连续滴定分析。
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.
以硝酸银标准溶液，采用电位滴定法，连续测定酸性镀铜光充剂中的巯基杂环化合物和硫脲衍生物的含量。
Used AgNO3 Standard solution to measure the content of mercapto heterogeneous ring compound and thioureido derivative in acid coppering gloss agent continuously by potentiometric titration.
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