微波消解-火焰原子吸收光谱法测定氧化铝中的氧化锂量  

Determination of Lithium Oxide Content of Alumina by Microwave Digestion and Flame Atomic Absorption Spectrometry Method

作　　者：薛铁鹏 白鹏程 李军华 卢瑞利 XUE Tie-peng;BAI Peng-cheng;LI Jun-hua;LU Rui-li(Guangxi Huasheng New Materials Co.,Ltd.,Fangchenggang 538003,China)

机构地区：[1]广西华昇新材料有限公司,广西防城港538003

出　　处：《化工管理》2022年第2期11-13,共3页Chemical Engineering Management

摘　　要：根据电解铝企业的要求,氧化锂含量已成为冶金氧化铝产品常规检测项目之一。文章采用硫酸微波消解氧化铝样品,火焰原子吸收光谱法测定氧化铝中氧化锂含量,氧化铝基体和氧化钠影响测定,其干扰可通过在标准系列中加入等量的氧化铝和氧化钠的方法来消除,测定结果表明本方法灵敏度较好、精密度较高,具有良好的可靠性。According to the requirements of electrolytic aluminum enterprises,lithium content has become one of the routine testing items of metallurgical alumina products.In this paper,alumina samples is used by microwave digestion,and lithium content of alumina samples is determined by flame atomic absorption spectrometry method.By adding the same amount of alumina and sodium oxide to the standard series of solution,it can eliminate the interference of the influence of alumina matrix and sodium oxide.The determination results show the method has good sensitivity,high precision and good reliability.

关 键 词：微波消解 火焰原子吸收 氧化铝 氧化锂 

分 类 号：O657.31[理学—分析化学]