交流电弧直读原子发射光谱法在矿石中定量和半定量分析的应用  

Application of AC Arc Direct-reading Atomic Emission Spectrometry on Quantitative and Semi-quantitative Analysis of Ore

作　　者：王应平 金婷婷 唐明姝 陈春永 WANG Ying-ping;JIN Ting-ting;TANG Ming-shu;CHEN Chun-yong(Institute of Geology,Geophysics and Chemistry,Yunnan Provincial Bureau of Nonferrous Geology(Testing Center of Yunnan Provincial Nonferrous Geology Bureau),Kunming,Yunnan 650216,China)

机构地区：[1]云南省有色地质局地质地球物理化学勘查院(云南省有色地质局测试中心),云南昆明650216

出　　处：《云南冶金》2024年第2期121-128,共8页Yunnan Metallurgy

摘　　要：采用内标法以对数坐标进行拟合曲线,光谱可定量的元素是标准曲线线性较好的,可计算矿石中元素的准确含量,光谱不可定量的元素,在摄谱时获得了这些元素的谱线强度(即为黑度),用目视法与一起摄谱的标样比较谱线的黑度,确定这些元素大致质量分数范围,实现了矿石中定量和半定量元素的分析检测,一次摄谱可以同时测定31个元素,满足客户需求,同时也是试验室对于矿石盲样分析不可缺少的分析手段之一。The fitting curve of logarithmic coordinates was done by using of internal standard method,elements can be quantitated by spectrum has a better standard curve linear,it can be used to calculate the accurate content of elements in ore,and the non-quantifiable elements by spectrum,the spectral line intensity(blackness)of the elements obtained by spectrography,which was compared with the spectral line of the standard sample by visual method,accordingly,the method is used for confirmation of the general mass fraction range of the elements,it realized the quantitative and semi-quantitative analysis test of ore,31 elements can be measured at the same time by one-time spectrography,it can meet the requirements from clients,and it also is the one of the necessary analysis manners for ore blind sample of lab.

关 键 词：交流电弧直读原子发射光谱 光谱定量半定量 定性分析 CCD检测 谱线 谱线强度 目视法 

分 类 号：O657.1[理学—分析化学]