| 神经网络动力学光度法同时测定烟草中铈和镧 |
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| 引用本文： | 姚岚,傅应强.神经网络动力学光度法同时测定烟草中铈和镧[J].广州化工,2011,39(7):101-104. |
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| 作者姓名： | 姚岚 傅应强 |
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| 作者单位： | 1. 安徽中烟芜湖卷烟厂设备科,安徽芜湖,241000
2. 安徽工程大学生物与化学工程学院,安徽芜湖,241000 |
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| 基金项目： | 安徽省高等学校优秀青年人才基金，安徽工程大学教研项目 |
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| 摘 要： | 在酸性介质中Ce4＋和La3＋同时阻抑溴酸钾氧化甲基红褪色反应,研究发现：两者对溴酸钾氧化甲基红褪色反应阻抑作用不具有加和性,根据这一现象,用人工神经网络处理非线性体系的优势进行数据处理,从而建立了一种同时测定Ce4＋和La3＋混合物的人工神经网络阻抑动力学光度法。对3种烟草样品进行测定,回收率位于95.0%~104.0%之间,RSD均小于4%,结果良好。
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| 关 键 词： | 人工神经网络 稀土 铈（Ⅳ） 镧（Ⅲ） 动力学光度法 |
Simultaneous Determination of Cerium and Lanthanum in Tobacco with Artificial Neural Networks by Kinetic Spectrophotometry |
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| YAO Lan,FU Ying-qiang.Simultaneous Determination of Cerium and Lanthanum in Tobacco with Artificial Neural Networks by Kinetic Spectrophotometry[J].GuangZhou Chemical Industry and Technology,2011,39(7):101-104. |
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| Authors: | YAO Lan FU Ying-qiang |
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| Affiliation: | 1 Wuhu Cigarette Factory,Anhui Wuhu 241000;2 School of Biology and Chemical Engineering,Anhui polytechnic University,Anhui Wuhu 241000,China) |
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| Abstract: | A simple and sensitive kinetic spectrophotometric method was developed for the simultaneous determination of the structurally similar rare earth elements,cerium(Ⅳ) and lanthanum(Ⅲ) by artificial neural networks.The method was based on the oxidation of methyl red by potassium bromate in hydrochloric acid medium.It found that the inhibitory effects of two rare earth elements can not be added.Based on this research,the advantages of artificial neural network were adopted to handle the experimental data and a new kinetic spectrophotometry of simultaneous determination for cerium(Ⅳ) and lanthanum(Ⅲ) with artificial neural networks was established.This method was applied to determination of three tobacco samples.The results showed that the method of recoveries between 95.0%~104.0%,and RSD were all lesser than 4%.The results of the determination in three tobacco samples were satisfactory. |
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| Keywords: | artificial neural network rare earth elements cerium(Ⅳ) lanthanum(Ⅲ) kinetic spectrophotometry |
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