邻菲咯啉法测定循环水总铁影响因素的研究  

Study of the factors affecting the determination of total iron content in circulating water by o - phenanthroline

作　　者：成敏[1] 郦和生[1] 

机构地区：[1]北京燕山石油化工公司研究院,北京102500

出　　处：《工业水处理》2002年第1期48-51,共4页Industrial Water Treatment

摘　　要：对邻菲咯啉法测定循环水总铁含量时影响因素———pH、器皿的处理方式、盐酸羟胺的加入顺序、缓冲溶液、加热时间等条件进行了研究。结果表明 ,pH必须控制在 2～ 7范围内 ,所用器皿必须用盐酸浸泡 ,样品测试过程中事先加入盐酸羟胺再煮沸可以使Fe3 + 还原的更彻底 。The factors which affect the determination of total iron content in circulating water by o - phenanthroline are studied. The factors are the pH,the vessels and the order of adding oxammonium hydrochloride, etc . The results show that the pH must be controlled between 2～7, all vessels must be soaked in hydrochloric acid for 40 minutes. Add oxammonium hydrochloride before the circulating water is boiled. In this case, Fe 3+ can be reduced more thoroughly and the influence of strong oxidizers can also be removed more thoroughly.

关 键 词：邻菲咯啉法 循环水 总铁测定 水质监测 

分 类 号：X832[环境科学与工程—环境工程]