| 减压微色谱柱在矿石分析中的应用研究——P350萃淋树脂分离光度法测定痕量金 |
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| 引用本文： | 龚治湘,宋金如,罗静.减压微色谱柱在矿石分析中的应用研究——P350萃淋树脂分离光度法测定痕量金[J].岩矿测试,1993(3). |
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| 作者姓名： | 龚治湘 宋金如 罗静 |
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| 作者单位： | 华东地质学院应用化学系，华东地质学院应用化学系，华东地质学院应用化学系 江西抚州 344000，江西抚州 344000，江西抚州 344000 |
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| 摘 要： | 研究了甲基膦酸二甲庚酯(P350)减压微色谱柱对Au的萃取性能。减压条件下,2mol/LHCI或浓度<25％的王水介质中的Au被萃取在P350(Φ3mm)微色谱柱上,再用小体积的1％Na_2SO_3定量洗脱。与常规柱相比,减压微色谱柱分离具有柱效高、洗脱体积小、速度快、节省大量试剂等优点。经标准样品验证,方法可用于含Au 0.025～200g/t地质样品的分析。
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| 关 键 词： | 甲基膦酸二甲庚酯(P350) 微色谱柱 金 光度法 |
Study on the Application of Decompressed Chromatographic Micro Column to Analysis of Ores -Photometric Determination of Trace Gold after Preconcentration and Separation with P_(350) Extraction Resin |
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| Gong Zhixiang,Shong Jingru and Luo Jing.Study on the Application of Decompressed Chromatographic Micro Column to Analysis of Ores -Photometric Determination of Trace Gold after Preconcentration and Separation with P_(350) Extraction Resin[J].Rock and Mineral Analysis,1993(3). |
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| Authors: | Gong Zhixiang Shong Jingru and Luo Jing |
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| Abstract: | The property of extracted gold on decompressed chromatographic micro column with P350 resin was studied. Under decompression, gold was quantitatively adsorbed on chromatographic micro column from 2 mol/L HC1 solution or <25% aquaregia medium, and e-luted with 1 ml 1% Na2SO3. In comparison with conventional column, the separation using chromatographic micro column has the advantages of high efficiency, small elution volum, rapidity and low cost. This method can be used for the determination of 0. 025~200g/t Au in ores. |
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| Keywords: | dimethylheptyl methylphosphonate (P350) chromatographic micro col-umn gold |
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