| 萃取反萃取石墨炉原子吸收光谱法测定化探样品中的微量金 |
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| 引用本文： | 余煜棉,张俊浩.萃取反萃取石墨炉原子吸收光谱法测定化探样品中的微量金[J].黄金,1993,14(3):51-54. |
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| 作者姓名： | 余煜棉 张俊浩 |
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| 作者单位： | 广东工学院化工系
(余煜棉)，广东工学院实验中心
(张俊浩)，海南烟草公司(郑辉) |
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| 摘 要： |
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| 关 键 词： | 金 地球化学勘探 样品 测定 |
Determination of gold in chemical prospecting sample by graphite furnace atomic absorption spectroscopy after solvent extraction-antiextraction |
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| Yu Yumian et al..Determination of gold in chemical prospecting sample by graphite furnace atomic absorption spectroscopy after solvent extraction-antiextraction[J].Gold,1993,14(3):51-54. |
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| Authors: | Yu Yumian |
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| Abstract: | This paper brings a method by which gold can be extracted from the sample solution by MIBK in the media of hydrochloric acid(1.5%)in the presence of ascorbic acid (to eliminate iron interference). Then, gold is antiextracted from MIBK with thiourea solution (1.2%) and determined by graphite furnace atomic absorption spectroscopy. The relative standard de iation is 5.8%, and the recovery is 95.7-105%. The method can be used to determine gold (above the grade of ppm) in chemical prospecting sample. |
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| Keywords: | gold graphite furnace atomic absorption spectroscopy extraction antiextraction chemical prospecting sample |
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