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利用生渣的还原特性,在pH为5~6的缓冲溶液中,加入显色剂,采用光度法间接测定生渣中氧化亚铁的含量,分析结果能满足生产的要求。
Using the reduction characteristics of raw dregs, chromogenic agent was added into buffer solution with pH value of 5 ~ 6, the content of ferrous oxide in dross was determined indirectly by spectrophotometry, and the result of the analysis can meet the requirements of production.