摘要
利用原子吸收分光光度法中的标准加入法测定液体硫酸铝样品中微量铁的质量分数。通过比较验证国标法邻菲罗啉分光光度法与原子吸收法中的标准曲线法和标准加入法发现,标准曲线法因样品中基体干扰严重而失效,标准加入法与邻菲罗啉分光光度法相比,可获得准确的数据和良好的精密度,且其处理方法简便,使用药剂少。在非大批量分析样品的前提下,原子吸收标准加入法可代替邻菲罗啉分光光度法测定液体硫酸铝中微量铁的含量。
The mass fraction of trace iron in liquid aluminum sulfate samples was determined by standard addition method in atonfic absorption speetrophotometry. By comparing and verifying phenanthroline speetrophotometry, atonfie absorption standard curve method and atonfie absorption standard addition method, it was found that standard curve method was invalid due to the serious matrix interference in the sample. Compared with phenanthroline speetrophotometry, atonfie absorption standard addition method could not only obtain accurate data and good precision, but also had a simple treatment method and less use of chemicals. Under the premise of non-largescale analysis of samples, atomic absorption standard addition method could replace phenanthroline speetrophotometrie method to determine the trace iron content in liquid aluminum sulfate.
作者
章文华
应琦琰
马凯迪
徐锡梅
彭慧
赵赛君
Ulrike Stadtmuller
刘洪波
Zhang Wenhua;Ying Qiyan;Ma Kaidi;Xu Ximei;Peng Hui;Zhao Saijun;Ulrike Stadtmiiller;Liu Hongbo(Water Quality Detection Center of Suzhou Industrial Park Qingyuan ＆ Hongkong China Water Co.,Ltd.,Suzhou 215021,China;School of Environment and Architecture,University of Shanghai for Science and Technology,Shanghai 200093,China;RheinMain University of Applied Sciences,Faculty of Engineering,Russelsheim 65428,Germany)
出处
《净水技术》
CAS
2018年第10期19-24,共6页
Water Purification Technology
基金
比尔及梅琳达盖茨基金会资助项目(RTTC-2014)
水处理技术研究以及相关领域虚拟合作平台创建协议资助项目(201608)
中德深度去除污水养分技术合作共同协议资助项目(201709)
中德深度去除污水养分技术研究(201608-2)
关键词
原子吸收
标准加入法
液体硫酸铝
微量铁
atomic absorption
standard addition method
liquid aluminum sulfate
trace iron
