原子荧光测试淮南二叠纪煤中锗的不确定度评定  

Uncertainty Judgment of Germanium in Huainan Permian Coal through Atomic Fluorescence Spectrometry

作　　者：徐辉 万亚丽 黄丽莉 王文强 Xu Hui;Wan Yali;Huang Lili;Wang Wenqiang(Jiangsu Design Institute of Geology for Mineral Resources(CNACG Test Center)Xuzhou,Jiangsu 221006;CNACG Key Laboratory of Coal Measures Mineral Resources,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]中国煤炭地质总局煤系矿产资源重点实验室,江苏徐州221006

出　　处：《中国煤炭地质》2021年第2期21-24,共4页Coal Geology of China

基　　金：江苏煤炭地质局科技项目(2016-Ⅱ-4)。

摘　　要：利用原子荧光测试了淮南二叠纪煤中锗的含量,并对测试结果进行了多次重复测量,分别考察了样品称重、前处理过程、定容体积、工作曲线拟合、重复性测量等影响因素引入的不确定度,同时对各不确定度分量进行了评估。结果表明,原子荧光测试煤中锗的不确定度主要由样品前处理过程、样品重复性试验和拟合工作曲线所产生,实验样品为淮南石河子组煤中锗的含量为2.95mg/kg,其扩展不确定度为0.536mg/kg,评定过程准确可靠,测量结果的可信程度高。Using atomic fluorescence spectrometry has tested germanium content in Huainan Permian coal.Through multiple repeated measurement for tested results have respectively inspected impacting factors of sample weighing,pretreatment process,constant volume,working curves fitting and repeatability test etc introduced uncertainty;simultaneously assessed each component product.The result has shown that the uncertainty from atomic fluorescence spectrometry tested germanium in coal is mainly from sample pretreatment process,repeatability test and working curves fitting.Germanium content of coal sample from Shihezi Formation,Huainan is 2.95 mg/kg,its expanded uncertainty 0.536 mg/kg.The judgment process is accurate and reliable with high confidence level measured results.

关 键 词：原子荧光 锗 不确定度 煤 淮南二叠纪 

分 类 号：O657.31[理学—分析化学] TQ533.1[理学—化学]