摘要
采用分光光度法 ,以磺基水杨酸为显色剂、双氧水为氧化剂 ,锌铁合金镀层用稀盐酸溶解 ,控制 pH值为 1.5～ 3 ,在等吸收点处测定吸光度 。
Spectrophotometry is used, with sulfosalicylic acid as chromogenic agent, H 2O 2 as oxidant, Zn Fe alloy coating dissolved in dilute hydrochloric acid, pH controlled in the range of 1.5 3, and the absorbance is determined at isoabsorptive point. On this basis, iron content in the coating and solution can be calculated according to Beer's law.
出处
《电镀与环保》
CAS
CSCD
2002年第1期23-25,共3页
Electroplating & Pollution Control
