摘要：

提出一种用磺基水杨酸作显色剂测定循环水中铁的新方法, 试验结果表明:此方法的标准偏差小于3.0%, 相对标准偏差小于5.0%, 加标回收率为99%～102%;此方法所用仪器简单、所需药剂较少、简便快速, 具有较高的准确性, 可在生产实际中应用。

关键词: 磺基水杨酸, 光度法, 循环水, 铁

Abstract:

A new method of the determination of total iron by using sulphosalicylic acid as colordeveloping agent in circulating water is put forward.The results show that the standard deviation is lower than 3.0 percent, the relative standard deviation lower than 5.0 percent,and the rate of recovery 99%～102%.The method is rapid,accurate and convenient and it can be applied to production.

Key words: sulphosalicy licacid, photomet ric determination, circulating water, iron

中图分类号: 

• X832