高频红外法测萤石中硫的研究  

Research on High Frequency-infrared Absorption Analysis Method of Sulfur in Fluorite

作　　者：张萍[1] 

机构地区：[1]湖南工学院化学化工系,衡阳421002

出　　处：《武汉理工大学学报》2010年第24期39-41,共3页Journal of Wuhan University of Technology

基　　金：湖南省教育厅科研资助重点项目(09A021);湖南省教育厅科研资助项目(08C260)

摘　　要：采用高频红外吸收法测定了萤石中总硫的含量,并对样品作测定前的预处理（物理处理）,在测定中选用复合型助熔剂,解决了高频感应炉中因顶吹氧气流的作用而导致的样品喷溅问题。该法可准确测定硫含量0.001%~5%的萤石中的硫,回收率为95.4%~107.6%,相对标准偏差（RSD）为0.8%~2.1%。该法准确、快速、简便,应用于萤石中硫元素的测定,结果满意。The determination of sulfur in fluorite using high frequency-infrared absorption was established.Samples are pretreatment mechanically and melted in complex slagging medium.Thus,sputtering caused by the oxygen stream blasting from the top is avoided.The measuring rang is 95.4%～107.6%,the RSD is less than 2.1%.This method is accurate,quick-acquired and convenient.It is used in the determination of sulfur in fluorite with the result is satisfactory.

关 键 词：高频红外吸收法 萤石 硫 复合型助熔剂 

分 类 号：O657.33[理学—分析化学]