ICP-OES法测定铁矿渣中镁、钛、钒、锰、钡含量  

Determination of content of magnesium,titanium,vanadium,manganese and barium in iron slag by ICP-OES

作　　者：张贺 李敏[1] 王思远 杨树俊 韩张雄 ZHANG He;LI Min;WANG Si-yuan;YANG Shu-jun;HAN Zhang-xiong(Geological Engineering Exploration Institute of Jiangsu Province,Nanjing 210012,China)

机构地区：[1]江苏省地质工程勘察院,江苏南京210012

出　　处：《化学工程师》2023年第10期42-45,48,共5页Chemical Engineer

基　　金：紫金山英才先锋计划高层次创新人才项目(202206270)。

摘　　要：本文采用微波消解对铁矿渣样品进行前处理,建立了使用电感耦合等离子体发射光谱仪(ICP-OES)同时测定铁矿渣样品中主量元素镁、钛、钒、锰、钡的分析方法。结果表明,微波消解法-电感耦合等离子体发射光谱测定5种元素的方法线性相关系数均在0.999以上,方法检出限为0.0040~0.016mg·kg^(-1),加标回收率为98.80%~103.3%,相对偏差为0.74%~3.5%。该方法灵敏度、加标回收率和精密度高,同时前处理耗酸量少,消解时间短,适用于铁矿渣中镁、钛、钒、锰、钡的快速、准确测定。In this paper,a method for the simultaneous determination of magnesium,titanium,vanadium,manganese and barium in iron slag samples by ICP-OES after microwave digestion was established.The results showed that the linear correlation coefficients of microwave digestion ICP-OES for the determination of five elements were above 0.999,the detection limit was 0.0040-0.016mg·kg^(-1),and the recovery rate was 98.80%~103.3%,and the relative deviation was 0.74%~3.5%.The microwave digestion method has high sensitivity,recovery and precision,less acid consumption in pretreatment and a short digestion time.It is suitable for accurately determining magnesium,titanium,vanadium,manganese and barium in iron slag.

关 键 词：铁矿渣 微波消解 主量元素 电感耦合等离子体发射光谱仪 

分 类 号：O657.3[理学—分析化学] X830[理学—化学]