自动光度滴定法测定铅精矿中铅含量  

Determination of Lead Content in Lead Concentrate by Automatic Photometric Titration

作　　者：黎香荣 罗明贵 黄园 谢毓群 Li Xiang-rong;Luo Ming-gui;Huang Yuan;Xie Yu-qun

机构地区：[1]防城海关综合技术服务中心,广西防城港538001 [2]广西东盟技术转移中心,广西南宁530001

出　　处：《化工设计通讯》2020年第1期73-74,共2页Chemical Engineering Design Communications

基　　金：国家质量监督检验检疫总局科技计划项目(2017IK065,2017IK180)

摘　　要：建立了酸消解-自动光度滴定法测定铅精矿中铅含量的方法。用铅精矿有证标准物质验证方法的准确性,回收率为97%~102%,相对标准偏差(RSD,n=11)在0.08%~0.13%。该方法解决了现有检测标准方法手工滴定终点判断困难,误差大等问题。A method for the determination of lead in lead concentrate by acid digestion and automatic photometric titration was established.The accuracy of the method is verified by certified reference materials of lead concentrate.The recovery is 97%-102%,and the relative standard deviation(RSD,n=11)is between 0.08%-0.13%.Methods to solve the problems such as the difficulty in judging the end point of manual titration and the big error in the existing standard methods.

关 键 词：铅精矿 光度滴定法 铅含量 

分 类 号：P575[天文地球—矿物学] O655.2[天文地球—地质学]