邓云江.ICP-AES内标法快速测定磷矿中的主要氧化物[J].贵州地质,2017,34(1):60-62,44
ICP-AES内标法快速测定磷矿中的主要氧化物
Quick Determination of Main Oxide in Phosphate Rock by ICP-AES Internal Standard Method
  
DOI:
中文关键词:  电感藕合等离子体发射光谱法  内标法  磷矿
英文关键词:ICP-AES  Internal standard method  Phosphate rock
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作者单位
邓云江 贵州省地质矿产中心实验室贵州贵 550018 
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中文摘要:
      试样采用HF-HNO3-HClO4混酸溶解,Rh作为内标,采用ICP-AES测定磷矿中的P2O5、CaO、Al2O3、TFe2O3、MgO、K2O、Na2O和TiO2的含量,其检出限依次分别为0.022,0.019,0.005,0.004,0.001,0.040,0.013,0.002 μg/mL。回收率在91.2%~100.7%之间,相对标准偏差小于5.0%。该方法简单快速、准确度高、精密度良好,测定值与标准值吻合。
英文摘要:
      The contents of of P2O5、CaO、Al2O3、TFe2O3、MgO、K2O、Na2O and TiO2 in phosphate rock were determined by ICP-AES internal standard method(using Rh as internal standard).The mixed digestion of HF,HNO3 and HClO4 was used for sample preparation.The detection limit for P,Ca,Al,Fe,Mg,K,Na and Ti was 0.022,0.019,0.005,0.004,0.001,0.040,0.013,0.002 μg/mL,respectively,recoveries were between 91.2% to 100.7%,RSDs were less than 5.0%.The method has the advantages of accurate result,high accuracy,and rapid determination of multi-elements.The determination results matched well with the certified values.
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