| 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 |
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| 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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| 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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