| ICP-MS法测定鼠脊髓液中超痕量镧、铈、镨和钕 |
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| 引用本文： | 刘虎生,解清,王小燕,王耐芬.ICP-MS法测定鼠脊髓液中超痕量镧、铈、镨和钕[J].分析试验室,2000,19(6):65-66. |
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| 作者姓名： | 刘虎生 解清 王小燕 王耐芬 |
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| 作者单位： | 北京大学公共卫生学院中心仪器室,北京,100083 |
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| 摘 要： | 采用ＮＨＯ３＋ＨＣｌＯ４混合酸溶样，感耦等离子体－质谱（ＩＣＰ－ＭＳ）直接测定鼠脊髓液中Ｌａ、Ｃｅ、Ｐｒ和Ｎｄ，对等离子体质谱测定条件进行了最佳化选择。选用铼（Ｒｅ）内标可补偿基体影响和仪器漂移。方法检出限为７．６－２０．３ｎｇ／Ｌ，加标试验回收率为９４％－１０２％，相对标准偏差（ＲＳＤ）为２．１％－３．７％。
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| 关 键 词： | 鼠脊髓液 ICP－MS 镧 铈 镨 钕 稀土微肥 测定 |
Determination of Ultra-trace La,Ce,Pr and Nd in Mouse Spinal Marrow Liquid by ICP-MS |
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| LIU Hu-sheng,XIE Qing,WANG Xiao-yan,WANG Nai-fen.Determination of Ultra-trace La,Ce,Pr and Nd in Mouse Spinal Marrow Liquid by ICP-MS[J].Chinese Journal of Analysis Laboratory,2000,19(6):65-66. |
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| Authors: | LIU Hu-sheng XIE Qing WANG Xiao-yan WANG Nai-fen |
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| Abstract: | An ICP MS method for direct determination of ultra trace La,Ce Pr and Nd in mouse spinal marrow liquid was developed. Rapid and complete dissolution of the mouse spinal marrow liquid was achieved with a mixture of nitric acid and perchloric acid. The detection limits are 7.6 to 20.3 ng/L, the recoveries for spiking samples are 94% to 102%,RSD are 2.1% to 3.7%, respectively. |
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| Keywords: | Mouse spinal marrow liquid ICP MS Ultra trace Lanthanum Cerium Praseodymium Neodymium |
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