| 水中铜,铅,锌,镉的协同萃取及火焰原子吸收分光光度测定法 |
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| 引用本文： | 刘汉尚,叶丽莎.水中铜,铅,锌,镉的协同萃取及火焰原子吸收分光光度测定法[J].福建师范大学学报(自然科学版),1989,5(4):61-66. |
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| 作者姓名： | 刘汉尚 叶丽莎 |
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| 作者单位： | 福建师范大学化学系，福建师范大学化学系，福建师范大学化学系 |
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| 摘 要： | 研究了以APDC+DDTC/MIBK+环己烷+醋酸丁酯为协同革取体系,用火焰原子吸收分光光度法测定水中微量铜、铅、锌、镉的方法。其检测限(PPb),铜为2.0,铅为4.0,锌为0.3,镉为0.5。根据溶液酸度、萃取剂配比、萃取剂用量、萃取时间、有机相的稳定性等对吸光度的影响,选择出较佳的萃取条件,由方法的准确度和精密度证实了方法的可靠性。
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| 关 键 词： | 水 铜 铅 光度法 协同萃取 锌 隔 |
Determination of Copper, Lead, Zinc and Cadmium in Water by Means of Synergism and Flame Atomic Absorption Spectrometry |
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| Liu Hanshang Yie Lisha Liang Aihua.Determination of Copper, Lead, Zinc and Cadmium in Water by Means of Synergism and Flame Atomic Absorption Spectrometry[J].Journal of Fujian Teachers University(Natural Science),1989,5(4):61-66. |
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| Authors: | Liu Hanshang Yie Lisha Liang Aihua |
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| Institution: | Department of Chemistry |
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| Abstract: | This paper studies the method of determining the trace of Cu, Pb, Zn and Cd in H_2O, using APDC+DDTC/MIBK + cyclehexane +n - bytylacetate as synergism system and the flame atomic absorption spectrometry. The detection limit (ppb) for Cu, Pb, Zn and Cd is 2.0, 4.0, 0.3 and 0.5, respectively. The correspondent extraction condition has been found. It has influence on absorbanee of light, e. g.acidic degree of the solution, component and amount of the extractant, extraction time and stability of organic phase. The reliability of this method has been examined by accuracy and precision. |
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| Keywords: | synergism the flame atomic absorption spectrometry extractant copper lead zinc cadmium |
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