摘要
应用主成分分析研究了液态样品的近红外光谱。在所得主成分权重图中显示出纯物质的光谱特征。将样品的前两个主成分得分做图可对样品分类。对样品进行主成分回归分析，所得结果与参考值基本一致。同主成分分析相结合，近红外光谱法的优点在于它的非破坏性，非常适于现场在线分析。
This paper studied the near infrared spectra of liquid samples.The plots of weights at each wavelength showed the spectral characteristics of pure materials.The samples could be classified by using plots of the scores of their first principal components.The principal component regression of samples was made.The obtained results were identical with the reference analytical values.The advantages of near infrared spectroscopy,combined with principal component analysis,lie in its nondectructivity for samples and suitability for on line measurements.
出处
《光谱学与光谱分析》
SCIE
EI
CAS
CSCD
北大核心
1997年第1期50-54,共5页
Spectroscopy and Spectral Analysis
关键词
近红外光谱法
主成分分析
非破坏分析
液态样品
Near infrared spectroscopy, Principal component analysis, Nondectrutive analysis
