| 苯－1，4－二甲酸体系荧光分析法测定铽 |
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| 引用本文： | 赵国虎,赵军,高锦章.苯－1，4－二甲酸体系荧光分析法测定铽[J].甘肃农业大学学报,1996(3). |
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| 作者姓名： | 赵国虎 赵军 高锦章 |
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| 作者单位： | 甘肃农业大学基础部，西北师范大学 |
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| 摘 要： | Ｔｂ３＋与苯—１，４—二甲酸形成的络合物，在ｐＨ＝５．５时直接测定Ｔｂ３＋的含量，波长为λｅｘ／λｅｍ＝２６０／５４５ｎｍ，检出限为１．５５×１０－７ｍｏｌ／Ｌ，线性范围１．５５×１０－７～４．０×１０－５ｍｏｌ／Ｌ，线性相关系数及标准误差分别为０．９９９３和１．７％。回收率为９８．６％～１００．７％，用于一些国际标准参考矿样中铽的测定得到了满意的结果
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| 关 键 词： | 铽的含量测定 荧光光度法 苯—1，4—二甲酸 |
Fluorimetric Analysis of Terbium(Ⅲ) Ion Using Benzene 1,4 dicarboxylic Acid |
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| Zhao Guohu,Zhao Jun,Gao Jinzhang.Fluorimetric Analysis of Terbium(Ⅲ) Ion Using Benzene 1,4 dicarboxylic Acid[J].Journal of Gansu Agricultural University,1996(3). |
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| Authors: | Zhao Guohu Zhao Jun Gao Jinzhang |
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| Institution: | Zhao Guohu 1 Zhao Jun 1 Gao Jinzhang 2 |
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| Abstract: | The fluorescence properties and emitting mechanism of the chalete of Tb 3+ with benzene 1,4 dicarboxylic acid were investigated.The optimal conditions for determining Tb 3+ and the interference of other rare earth ions as well as some common metal ions were studied.As the wave length of λ ex /λ em was 260/545 nm at pH 5 5,Tb 3+ concentration was determined with a lowest detection limit of 1 55×10 -7 mol/L,a linear range of 1 55×10 -7 ～4 0 ×10 -5 mol/L,a linear correlation coefficient (R) of 0 9993 and a relative standard deviation of 1 7 %. The recovery was achieved between 98 6% and 100 7%. |
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| Keywords: | Terbium determination Spectrofluorimetry benzene 1 4 dicarboxylic acid |
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