| 吡啶-2.6-二羧酸纸上荧光法测定痕量铕、铽 |
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| 引用本文： | 王东君,徐岩,黄汉国.吡啶-2.6-二羧酸纸上荧光法测定痕量铕、铽[J].河北理工学院学报,1991(3). |
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| 作者姓名： | 王东君 徐岩 黄汉国 |
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| 作者单位： | 唐山工程技术学院化工系，唐山工程技术学院化工系，唐山工程技术学院化工系 |
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| 摘 要： | 探讨了吡啶—2.6—二羧酸纸上荧光法测定痕量铕、铽的最佳条件与各种影响。实验结果表明:利用本方法可测定分别低于18ng的痕量Eu~(3+)、Tb~(3+),检测限分别达到0.5、1.9ng,线性关系良好,且相互不干扰。将该法应用于人工合成试样中Eu~(3+)、Tb~(3+)的测定,回收率在92～110％之间,相对标准偏差均小于6.7％。
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| 关 键 词： | 纸上荧光法 吡啶—2.6—二羧酸 铕、铽 |
DETERMINATION OF TRACE AMOUNT OF EUROPIUM AND TERBIUM WITH PYRIDINE-2,6-DICARBOXYLIC ACID BY FLUORIMETRY USING FILTER PAPER AS THE SUBSTRATE |
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| Wang Dongjun Xu Yan Huang Hanguo.DETERMINATION OF TRACE AMOUNT OF EUROPIUM AND TERBIUM WITH PYRIDINE-2,6-DICARBOXYLIC ACID BY FLUORIMETRY USING FILTER PAPER AS THE SUBSTRATE[J].Journal of Hebei Institute of Technology,1991(3). |
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| Authors: | Wang Dongjun Xu Yan Huang Hanguo |
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| Institution: | Chemical Engineering Department |
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| Abstract: | A method for determining Eu~(3+),Tb~(3+) with pyridine-2, 6-dicarboxylic acid by fluorimetry using filter paper as the substrate isr eported. The optimal conditions of the fluorimetric determination and the influence of coexistent rare earth are studied. The detection limit is 1.9(Tb~(3+)) and 0.5ng(Eu~(3+)),respectively. Calibration curves are linear in the range of 0-18ng. |
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| Keywords: | filter paper fluorimetry europium terbium pyridinc-2 6-dicarboxylic acid |
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