分光光度法测定锌铁合金镀层及镀液中的铁  

Spectrophotometric Determination of Iron Content in Zn-Fe Alloy Coating and Solution

作　　者：舒余德[1] 王云燕[1] 谢勤[1] 符德学[1] 

机构地区：[1]中南工业大学冶金科学与工程系冶化所,长沙410083

出　　处：《电镀与环保》2002年第1期23-25,共3页Electroplating & Pollution Control

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.

关 键 词：分光光度法 锌铁合金 镀层 镀液 铁含量 电镀 测定 

分 类 号：TQ153.2[化学工程—电化学工业]