4,5-二溴苯基萤光酮-CTAB光度法测定矿物中微量铟 |
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引用本文: | 王东进,何文全,蔡志高,潘庆洪.4,5-二溴苯基萤光酮-CTAB光度法测定矿物中微量铟[J].岩石矿物学杂志,1985,4(1):82-84. |
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作者姓名: | 王东进 何文全 蔡志高 潘庆洪 |
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作者单位: | 福州大学化学系
(王东进,何文全,蔡志高),中山大学化学系(潘庆洪) |
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摘 要: | 本文较详细地研究了In~(3+)-Br-PF-CTAB三元络合物的形成条件、组成及干扰的消除,拟定了矿物中微量铟的测定方法。
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Spectrophotometric Determination of Indium with 4, 5-di-bromophenylfuorone in The Freaence of CTMAB |
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Abstract: | A new sensitive spectrophotometric method for the determination of In
(III) with 4, 5-dibromopb.enylfluorone and GTMAB is described. The molar
absorptivity of the ternary complex is 1.63x 105 1 mol-1 cm-1 at 590nm. The
molar ratio of In/Br-PF/CTMAB is 1:3:6. Beer''s law obeyed for indium in the
range of 0-10 µg/10 ml. In(III)is extracted with n-butyl actate from the
sample solution in 5 N hydrobromic acid. The method permits determination
of n(10-1-10-5)% of Indium. |
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