锌合金中铁量的分析研究

The Analysis Research on the Hard Content in Zinc Base Alloy

对锌合金中Cu含量超过2 mg/L时测定铁量,采取7 mol/L的盐酸介质,用乙酸乙酯萃取剂萃取铁与铜的分离,用水反萃取铁,再用磺基水扬酸分光光度法测定铁量,以消除铜对铁的正干扰。

When the copper content surpasses 2 mg/L in the zinc base alloy to determining the hard quantity , the text extracts the iron separation from the copper whth ethyl acetate extracting agent in 7 mol/L hydrochloric acid medium, then counter- extracts the iron in water, again determines the iron quantity by the sulfosalicylic acid sepectrophotometric method to eliminate the copper＇s disturbance to the iron.