摘要
为了快速区分人参和西洋参,依据两者所含的人参皂苷在太赫兹波段具有不同指纹光谱,提出了一种基于人参皂苷的太赫兹光谱鉴别人参和西洋参的方法。采用MATLAB软件识别人参和西洋参的太赫兹光谱,同时根据太赫兹光谱特征并通过标准的主成分分析(PCA)区分出人参、西洋参。实验结果表明,基于太赫兹光谱的主成分分析可精确区分出人参、西洋参,并且还可以应用于其他类似物质的区分中。
Since ginsenosides contained in the two herbs have different fingerprint spectra in the terahertz band,a method based on ginsenoside terahertz spectrum was proposed for the identification of ginseng and panax quinquefolium.The terahertz spectra of ginseng and panax quinquefolium were identified by MATLAB software,and the ginseng and panax quinquefolium were distinguished by the standard principal component analysis(PCA)according to their terahertz spectral characteristics.The results show that the principal component analysis based on terahertz spectrum can distinguish ginseng and panax quinquefolium accurately,and it can also be applied to other similar substances.
作者
寇天一
KOU Tianyi(School of Optical-Electrical and Computer Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China)
出处
《光学仪器》
2020年第5期27-32,共6页
Optical Instruments
关键词
人参
西洋参
皂苷
太赫兹
主成分分析(PCA)
ginseng
panax quinquefolium
saponins
terahertz
principal component analysis(PCA)
