| 维生素B的同时测定─—神经网络与紫外光谱法 |
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| 引用本文： | 曾鸽鸣,李志良,李梦龙.维生素B的同时测定─—神经网络与紫外光谱法[J].分析试验室,1996(2). |
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| 作者姓名： | 曾鸽鸣 李志良 李梦龙 |
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| 作者单位： | 湖南大学化学化工系，四川联合大学 |
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| 基金项目： | 日本政府文部省、国家教委、机械部及国家自然科学基金 |
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| 摘 要： | 研究了反向传播神经网络（ＢＰＮＮ）及改进算法，经比较发现ＢＰＮＮ在某些方面优于滤波分辨及多元校正。将其应用于多元分析及光谱定量，可不经分离同时测定Ｂ族维生素，操作简便，结果良好。从而开发了一种多组分同时光谱测定新方法。
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| 关 键 词： | 神经网络，化学计量学，维生素B，同时测定 |
Neural Networks and Ultraviolet Spec-troscopy for Simultaneous MulticomponentAnalysis of Vitamins in Mixture Samples andCompound Preparations |
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| Zeng Geming,LiZhiliang.Neural Networks and Ultraviolet Spec-troscopy for Simultaneous MulticomponentAnalysis of Vitamins in Mixture Samples andCompound Preparations[J].Chinese Journal of Analysis Laboratory,1996(2). |
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| Authors: | Zeng Geming LiZhiliang |
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| Abstract: | he principle of neural networks(NN)was briefly described. Backpropagation(BP)is a widely usWeed algorithm to train NN withslow convergence and local optima.In orderto overcome the weakness of BP,a modifiedbackpropagation algorithm (MBP)was pro-posed for training NN. MBPNN was thenused for simultaneous multicomponent anal-ysis of four B-grouped vitamins,vitamin B_1,B_2,B_6 and NAA,with good results and with-out any separation,which could be regardedas a new chemometric method for multicom-ponent analysis. |
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| Keywords: | Neural networks modifiedbackpropagation vitamin B's simultaneousdetermination:chemometrics |
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