摘要
目的:改进普通的磺基水杨酸测定铁含量的方法。方法:采用示差光度技术测定饮用水中的微量铁。结果:测量方法的线性范围向下扩展,在1～20μg/25 mL时呈现良好的线性关系,相关系数R为0.999,回收率达89.3%～96.2%。结论:示差光度法可用于饮用水中微量铁的测定。
Objective： The conventional method which determination of trace iron by sulfosalieyhe acid spectrophotometry was improved.Medthods： The linear range was downward extended by the differential spectrophotometry method.Results： The calibration curye was linear in the range of 1～20 μg/25 mL（R=0.999）,The returns-ratio wag about 89.3 %～96.2 %.Conclusion： The method was used to determinate the content of iron in tap water.
出处
《广东化工》
CAS
2011年第11期137-137,118,共2页
Guangdong Chemical Industry
关键词
示差光度法
磺基水杨酸
铁
differential spectrophotometry method
sulfosalicylic acid
iron
