光谱学与光谱分析
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近红外光谱结合主成分分析鉴别不同产地的南丰蜜桔
魏远隆1* ,尹昌海1, 2 ,陈贵平1, 2 ,黄 洁1, 2 ,张维冰2 ,杜一平2*
1. 江西出入境检验检疫局综合技术中心,江西 南昌 330038 2. 华东理工大学分析测试中心 上海市功能材料重点实验室,上海 200237
Identification of Nanfeng Mandarin from Different Origins by Using Near Infrared Spectroscopy Coupled with Principal Components Analysis
WEI Yuan-long1* , YIN Chang-hai1, 2 , CHEN Gui-ping1, 2 , HUANG Jie1, 2 , ZHANG Wei-bing2 , DU Yi-ping2*
1. Comprehensive Technology Center, Jiangxi Entry-Exit Inspection and Quarantine Bureau, Nanchang 330038, China 2. Shanghai Key Laboratory of Functional Materials Chemistry, and Research Center of Analysis and Test, East China University of Science and Technology, Shanghai 200237, China
摘要 : 采用近红外光谱结合主成分分析(PCA)建立不同产地南丰蜜桔鉴别模型,实现不同产地南丰蜜桔的快速鉴别。分别研究一个果园内不同位置的蜜桔,洽湾、市山和白舍等南丰县三个不同乡镇的南丰蜜桔,福建邵武、广西柳城和江西南丰等三个不同省份的南丰蜜桔之间的差异,蜜桔保存时间对主成分分析模型的影响。结果表明同一个果园内不同位置的蜜桔不存在明显差别,不同产地的蜜桔有很好的分类效果,蜜桔的短时间保存对近红外光谱的主成分分析模型不会产生明显影响。不同的光谱预处理方法对主成分分析模型产生较大影响,多元散射校正(MSC)结合二阶导预处理得到的主成分分析投影具有最佳的分类效果。该研究可为南丰蜜桔的产地鉴别提供一种参考方法。
关键词 :南丰蜜桔;近红外光谱;主成分分析;产地鉴别
Abstract :The identification of Nanfeng mandarins from different origins was developed by using near infrared spectroscopy (NIR) and principal components analysis (PCA). Mandarins from different places in one orchard, and from different orchards in three towns of Nanfeng county were studied. Also differences among Shaowu,Liucheng and Nanfeng were investigated. Furthermore, the effect of storage time of mandarins on the PCA model was considered. The results demonstrate that there was no clear diversity of the mandarins in one origin but great differences existed among different ones. And the storage time of mandarins played little role in the discrimination model. The method of multiple scattering correction (MSC) coupled with second derivative was selected to build PCA discrimination models compared with other data pretreatment methods. The proposed model would be a reference method for origin identification of Nanfeng mandarin.
Key words :Nanfeng mandarin;Near Infrared Spectroscopy;PCA;Identification
收稿日期: 2013-03-01
修订日期: 2013-05-08
通讯作者:
魏远隆,杜一平
E-mail: yipingdu@ecust.edu.cn
引用本文:
魏远隆1* ,尹昌海1, 2 ,陈贵平1, 2 ,黄 洁1, 2 ,张维冰2 ,杜一平2* . 近红外光谱结合主成分分析鉴别不同产地的南丰蜜桔 [J]. 光谱学与光谱分析, 2013, 33(11): 3024-3027.
WEI Yuan-long1* , YIN Chang-hai1, 2 , CHEN Gui-ping1, 2 , HUANG Jie1, 2 , ZHANG Wei-bing2 , DU Yi-ping2* . Identification of Nanfeng Mandarin from Different Origins by Using Near Infrared Spectroscopy Coupled with Principal Components Analysis . SPECTROSCOPY AND SPECTRAL ANALYSIS, 2013, 33(11): 3024-3027.
链接本文:
https://www.gpxygpfx.com/CN/10.3964/j.issn.1000-0593(2013)11-3024-04
或
https://www.gpxygpfx.com/CN/Y2013/V33/I11/3024
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