| 纸色谱—硫代米蚩酮目视比色法测定岩矿中微量金 |
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| 引用本文： | 林文祥.纸色谱—硫代米蚩酮目视比色法测定岩矿中微量金[J].岩石矿物学杂志,1984,3(3):272-273. |
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| 作者姓名： | 林文祥 |
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| 作者单位： | 南京地矿所实验室 |
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| 摘 要： | 岩矿中微量金的测定,一般采用炭粉吸附、萃取、离子交换等方法分离后,用原子吸收光度法或孔雀绿、硫代米蚩酮萃取分光光度法测定。硫代米蚩酮—异戍醇(或正丁醇)萃取比色法灵敏度较高,但稳定性差,手续烦琐,不易掌握。我们试验用纸色谱分离直接在色谱纸上用硫代米蚩酮显色目视比
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Colorimetric Determination of Micro Amount oaf Oold in Ores with TMK by Using Paper-chromatography |
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| Abstract: | A uew simple paper-chromatography for the colorimetric determination of
micro amount of gold with thio-Michlers ketone(TMKI in ores has been studi-
ed. The sample solution in hydrochloric acid medium was introduced on chro-
matographic paper. The developing medium was alcohol-acetic acid-water solu-
tion and ascending process was applied. The chromatogram was developed with
0.3% TMK of ethyl alcohol solution. The Rf value of gold was found to be
0 .99, the other elements such as Cu, Ni,Co, Se, As, Ag, Mo and Te were less than
0.82. The mekhod could be applied to the determination of 0.OOx-O.x g/T gold
an ores. |
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