全自动电位滴定法测定钒铁中钒含量的研究  

Research on determination of vanadium content in ferrovanadium alloy by automatic potentiometric titration method

作　　者：沈健 张艳[1] 陈海岚[1] SHEN Jian;ZHANG Yan;CHEN Hailan(Manufacturing Management Department,Baoshan Iron & Steel Co. ,Ltd. , Shanghai 201900, China)

机构地区：[1]宝山钢铁股份有限公司制造管理部,上海201900

出　　处：《宝钢技术》2022年第1期15-17,共3页Baosteel Technology

摘　　要：建立了采用全自动电位滴定法测定钒铁中钒含量的方法。采用硝酸、硫酸溶解钒铁样品;对全自动电位滴定仪滴定模式的选择及滴定参数进行优化,实现了钒铁中钒含量的全自动电位滴定分析。精密度和准确度试验表明,该方法操作简单、快速、准确,相对标准偏差为0.18%(n=11),能满足实际分析之要求。A method for the determination of vanadium content in ferrovanadium alloy by automatic potentiometric titration is proposed.The sample is dissolved with nitric acid and sulfuric acid.Through the choice of determination of the parameters including the titration speed,the standard solution addition way,the method for the determination of vanadium content in ferrovanadium alloy by automatic potentiometric titration is established.The method is fast,simple and accurate.The relative standard deviation is 0.18%(n=11).It can meet the requirements of practical analysis.

关 键 词：全自动电位滴定法 钒铁 钒 

分 类 号：O657[理学—分析化学]