In complex formation, the metal ion is usually titrated with the standardized EDTA Solution in order to determine the metal content of sample. Therefore, it is widespreadly applied in practice.

• 在配位滴定中,常用标准的EDTA溶液滴定金属离子,达到测定试样中金属含量的目的,因而在实际中有广泛的应用。