ICP-AES法测定硅灰石中铝、铁、钾、镁、锰、钛  

Determination of Aluminum, Iron, Potassium, Magnesium, Manganese, Titanium in Wollastonite by ICP-AES Method

作　　者：徐兆锋[1] 闵国华[1] 张庆建[1] 岳春雷[1] 唐梦奇 

机构地区：[1]山东出入境检验检疫局,山东青岛266500 [2]防城港出入境检验检疫局,广西防城港538001

出　　处：《矿产综合利用》2018年第1期79-81,45,共4页Multipurpose Utilization of Mineral Resources

基　　金：国家质量监督检验检疫总局科研计划项目(2015IK193);山东出入境检验检疫局科研计划项目(SK201636)

摘　　要：样品利用盐酸溶解,加高氯酸提温蒸发,盐酸溶解结晶盐类,然后用电感耦合等离子体原子发射光谱法测定溶液中铝、铁、钾、镁、锰、钛等六种杂质元素。研究了基体硅对六种元素测定的影响,通过添加氢氟酸,避免基体硅的影响。采用硅灰石标准物质与硅灰石样品进行测试,相对标准偏差小于5%,硅灰石标准物质检测值与标准物质含量相一致,测试过程不存在明显的系统误差,回收率在92%~105%之间,检测值是可靠的。方法适用于硅灰石中杂质元素的快速测定。Samples are dissolved by hydrochloric acid. Perchloric acid was added into the solution to enhance temperature and evaporate. The crystal salt was dissolved by hydrochloric acid. The six impure elements of aluminum, iron, potassium, magnesium, manganese, titanium in solution were determined by inductively coupled plasma atomic emission spectrometry. The effect of matrix silicon on the six elements determination was studied. And the effect was avoided by adding hydrofluoric acid. Wollastonite certified standard material and samples were tested. The testing relative standard deviation was less than 5%. The determination values of wollastonite certified standard material was consistent with its standard values. Testing process didn＇t exist obvious systematic errors. The recovery rate was between 92% ~ 105%. And the determination values are reliable. The method is applicable in rapid determination of impure elements in wollastonite.

关 键 词：ICP-AES法 硅灰石 杂质元素 

分 类 号：TD989[矿业工程—选矿] O657.31[理学—分析化学]