| 硝酸反萃取火焰原子吸收光谱测定腺苷钴铵片中微量钴 |
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| 引用本文： | 周立群. 硝酸反萃取火焰原子吸收光谱测定腺苷钴铵片中微量钴[J]. 湖北大学学报(自然科学版), 1999, 21(4): 373-375 |
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| 作者姓名： | 周立群 |
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| 作者单位： | [1]湖北大学化学与材料科学学院 [2]武汉市城市建设学校 |
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| 摘 要： | 研究了以１ｍｏｌ．Ｌ＾－１ＮＨ４ＳＣＮ为介质，甲基异丁基甲酮萃取，４ｍｏｌ．Ｏ＾－１硝酸反萃取火焰原子吸收光谱水相测定微量钴的方法，钴量在０－５ｍｇ．Ｌ＾－１范围内呈良好的线性关系，检出限为０．０７０ｍｇ．Ｌ＾－１，相对标准偏差为１．１７％，该方法适用于腺苷钴胺片中微量钴的测定。
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| 关 键 词： | 钴 反萃取 原子吸收光谱 维生素B12 腺苷钴铵片 |
| 文章编号： | 1000-2375(1999)04-0373-03 |
Determination of Micro-amounts of Cobalt in Cobamamide Tablets by Nitric Acid Successive Extraction and Flame Atomic Absorption Spectrometry |
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| Zhou Liqun, Zhang Ji, Zeng Qinghong, Wu Su, Chen Yang, Feng Wenxiang. Determination of Micro-amounts of Cobalt in Cobamamide Tablets by Nitric Acid Successive Extraction and Flame Atomic Absorption Spectrometry[J]. Journal of Hubei University(Natural Science Edition), 1999, 21(4): 373-375 |
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| Authors: | Zhou Liqun Zhang Ji Zeng Qinghong Wu Su Chen Yang Feng Wenxiang |
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| Abstract: | Determination of micro -amounts of cobalt has been studied by methyl isobutyl ketone (MIBK) extraction procedure in 1 mol.L- 1 WSCN meditim folfowed by 4 mel' L-1 nitric acid successive extraction, and analysesed by flame atomic absorption spectrometry.The analytical calibration curve for cobalt shows execllent linearity in the rmge of 0 ~ 5 mg. L-1 with RSD of 1. 17%. The detection lindt is 0.070mg. L- 1. This metLhed is sugrsted for the detendnation of cohalt in cobnide Iablets. |
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| Keywords: | Cobamamide tablets Micro-amounts cobalt Successive extraction Flame atomic absorption spectrometry |
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