| 磷酸三丁脂萃取-火焰原子吸收光度法测定金 |
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| 引用本文： | 邱林友,邱然.磷酸三丁脂萃取-火焰原子吸收光度法测定金[J].西安文理学院学报,2010(4):22-25. |
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| 作者姓名： | 邱林友 邱然 |
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| 作者单位： | [1]昆明理工大学测试中心,云南昆明650093 [2]北京大学化学与分子工程学院,北京100871 |
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| 摘 要： | 研究了稀释剂的选择、王水浓度、TBP浓度、温度、振荡时间和相比等对萃取金的影响,提出以20%(V/V)的磷酸三丁脂—乙酸丁脂溶液直接从20%(V/V)王水介质中萃取金(Ⅲ),然后用火焰原子吸收光度法测定.以乙酸丁脂为稀释剂,在20%(V/V)的王水介质中,TBP浓度为20%(V/V)、常温下、人工振荡90 s或机器振荡30 s、有机相与水相比为1∶4金均能被萃取完全.
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| 关 键 词： | 金的测定 磷酸三丁脂 萃取 火焰原子吸收 |
Extraction of Gold by TBP and Determination by FAAS |
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| QIU Ling-you,QIU Ran.Extraction of Gold by TBP and Determination by FAAS[J].Journal of Xi‘an University of Arts & Science:Natural Science Edition,2010(4):22-25. |
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| Authors: | QIU Ling-you QIU Ran |
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| Institution: | 1.Test Center,Kunming University of Science and Technology,Kunming 650093,China;2.College of Chemistry and Molecular Engineering,Beijing University,Beijing 100871,China) |
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| Abstract: | This paper is on a study in the effect of extraction of gold by means of the selection of thinner,concentration of aqua regia and tributyl phsophate（TBP）,temperature,time of oscillation,and rate of phase etc.Gold is extracted by 20%（V/V） TBP-butyl acetate solution from 20%（V/V）nitrohydrochloric acid and determined by flame atomic absorption spectrometry（FAAS）.Gold can be extracted in the normal atmospheric temperature and 20%（V/V）aqua regia,using butyl acetate as thinner.The concentration of TBP is 20%（V/V）,man oscillation is 90 seconds or machine oscillation is 30 seconds,and ratio of organic phase and water（V/V） is 1 ∶4. |
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| Keywords: | determination of gold TBP extraction FAAS |
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