近红外光谱技术鉴别连翘产地
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Identification of Forsythia Suspense from Different Habitats by NIR Spectra
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    摘要:

    采用近红外光谱结合SIMCA模式识别方法鉴别五个不同产地的连翘。研究结果表明,在6700~5300cm-1波数范围内的光谱,通过SNV预处理方法后,利用SIMCA的模式识别方法分别为卢氏、栾川、洛宁、新安和山西安泽等五个产地连翘建立了模型。交叉验证的最佳主成分数分别为3,2,2,3,4。在α=5%的显著水平下,预测集的10个样品中只有1个被错判,表明该方法具有良好的鉴别分类功能。

    Abstract:

    Identification method of forsythia suspense from 5 different habitats by near infrared spectroscopy coupled with pattern recognition based on SIMCA was proposed in this paper.In the spectra region between 6700cm-1 and 5300cm-1,5 predictive models of Lushi,Luanchuan,Luoning,Xin′an in Henan province,and Anzhe in Shanxi province were built separately by the standard normal variate (SNV) preprocessing method with SIMCA pattern recognition method,optimal principal components were 3,2,2,3,4.Under the α=5% significance level,1 sample wasn′t identified correctly in 10 prediction sample,it prove that method was established can identify exactly forsythia suspense from different habitats.

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张晓慧,刘建学.近红外光谱技术鉴别连翘产地[J].激光与红外,2008,38(4):342~344
ZHANG Xiao-hui, LIU Jian-xue. Identification of Forsythia Suspense from Different Habitats by NIR Spectra[J]. LASER & INFRARED,2008,38(4):342~344

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