原子荧光光谱测定煤中锗的方法研究  

Methodical Study on Germanium in Coal Determination through Atomic Fluorescence Spectrometry(AFS)

作　　者：王文强 Wang Wenqiang(Jiangsu Design Institute for Mineral Resources(Testing Center of CNACG),Xuzhou,Jiangsu 221006;CNACG Key Laboratory of Shale Gas,Xuzhou,Jiangsu 221006;CNACG Key Laboratory of Mineral Resources in Coal Measures,Xuzhou,Jiangsu 221006)

机构地区：[1]江苏地质矿产设计研究院(中国煤炭地质总局检测中心),江苏徐州221006 [2]中国煤炭地质总局页岩气重点实验室,江苏徐州221006 [3]中国煤炭地质总局煤系矿产资源重点实验室,江苏徐州221006

出　　处：《中国煤炭地质》2020年第9期142-149,共8页Coal Geology of China

基　　金：江苏煤炭地质局科技发展专项资金项目,项目编号:苏研2016-11-4。

摘　　要：采集了山西怀仁、陕西彬长、安徽淮南、山东枣庄、山东兖州、内蒙古通辽等不同矿区的煤样,结合现行规范GB/T 8207-2007《煤中锗的测定方法》,重点研究样品预处理方法,选定原子荧光光谱仪工作条件,建立了氢化物-原子荧光光谱法测定煤中锗的方法,并对方法进行了可行性评价和不确定度分析,论文成果补充了国标煤中锗含量的测试方法,采用现代仪器分析与测试技术,测试效率较高;测试检出限可达ng/g级别,精密度较高,样品绝对误差较小,解决了煤中低含量锗样品测试的难题。该方法可准确测量锗在煤层中的储量,对调查、评价和开发利用锗资源具有重要的意义。For coal samples acquired from different mining areas including Huairen in Shanxi,Binchang in Shaanxi,Huainan in Anhui,Zaozhuang and Yanzhou in Shandong,Tongliao in Inner Mongolia,based on current norm GB/T 8201—2007“Determination of Germanium in Coal”have carried out research focused on sample preprocessing method;through AFS working condition selection has established hydride-AFS germanium in coal determination method,carried out method feasibility assessment and uncertainty analysis.The paper has replenished the norm GB/T 8201—2007 germanium determination method,through modern instrument analysis and test to get higher testing efficiency,thus testing detection limit ng/g level can be reached.The method has higher precision,lesser sample absolute error and solved the testing hard nut of low content germanium in coal.The method can test reserve of germanium in coal seams accurately,thus has significance in germanium resources exploration,assessment,exploitation and utilization.

关 键 词：原子荧光 煤中伴生元素 锗 仪器工作条件 实验条件 

分 类 号：P624.7[天文地球—地质矿产勘探]