磺基水杨酸示差光度法测定自来水中的微量铁  

Determination of Trace Iron in the Running Water by Differential Spectrophotometry Method with Sulfosalicylic Acid

作　　者：赵良[1] 南海娟[1] 刘灿召[1] 颜振敏[1] 魏新军[1] 

机构地区：[1]河南科技学院食品学院,河南新乡453003

出　　处：《农产品加工（下）》2010年第3期80-81,共2页Farm Products Processing

摘　　要：对传统的磺基水杨酸测定铁含量的方法进行了改进,采用示差光度技术,使测量方法的线性范围向下扩展,在1～20μg/25mL时呈现良好的线性关系,相关系数R=0.999。用于自来水中铁含量的测定,回收率达89.8%～96.0%。In this paper, the conventional method which determination of trace iron by sulfosalicylic acid spectrophotometry was improved. The linear range was downward extended by the differential spectrophotometry method. The calibration curve was linear in the range of 1-20 ug/25 mL （R=0.999） . The method was used to delerminate the content of iron in running water. The returus-ratio was about 89.8%-96.0%.

关 键 词：示差光度法 磺基水杨酸 铁 

分 类 号：O432.2[机械工程—光学工程]