摘要
对常用于C1-检测的方法——离子色谱法、电位滴定法和直接滴定法进行分析比较,发现离子色谱法的结果较好,相对误差和相对标准偏差分别为-1.83％和0.05％,加标回收率为105.1％～109.8％.将该方法应用到循环水中的5种阴离子Cl^-、NO2^-、NO3^-、PO4^3-、SO4^2-的分析中,加标回收率分别为107.2％、102.0％、97.7％、97.0％和100.3％,完全满足工业分析的需求.
Three kinds of Cl^- determination methods： ion chromatography, potentiometrie titration and direct titration method were studied. The result shows that ion chromatography is better than others, the relative error and RSD are -1.83% and 0.05% respectively, and the recovery can reach to 105.1%～109.8%. Using ion chromatography to determine five kinds of anion （ Cl^-, NO2^-, NO3^-, PO4^3-, SO4^2-）, the recoveries are 107.2%, 102.0%, 97.7%, 97.0% and 100.3% respectively, which can fully meet the needs of industrial analysis.
出处
《大氮肥》
CAS
2014年第3期205-207,210,共4页
Large Scale Nitrogenous Fertilizer Industry
关键词
Cl^-
循环水
测定
离子色谱法
Cl^-
circulating water
determination
ion chromatography
