A novel method for the discrimination of the three kinds of Indigowoad Root sample, Radix Isatidis (RI), Rhizoma et Radix Baphicacanthis Cusia (RRBC) and simulated adulterated samples (AD) was researched and developed with the use of near infrared spectroscopy (NIR) and chemometrics. Principal component analysis (PCA) was applied to process the NIR data of 75 collected Indigowoad Root samples, and the three kinds of such sample were discriminated along the first principal component (PC1) axis. In addition, the data pretreatment methods - genetic algorithm-partial least squares (GA-PLS), successive projections algorithm (SPA), and wavelet transform (WT), were employed to select the key analytical wavelengths, and then, these were used as input variables for the three kinds of the pattern recognition method, such as K-nearest neighbor (KNN), radial basis function-artificial neural network (RBF-ANN), least squares-support vector machine (LS-SVM) and back propagation-artificial neural network (BP-ANN). The WT was the method of choice for data pretreatment, and three pretreatment-prediction method combinations performed well (basis: %recognition rate) - WT-KNN (98.2%) and BP-ANN (97.3%) as well as GA-PLS - LS-SVM (97.2). A BP-ANN calibration model was built for the quantitative discrimination of the three types of the complex Indigowoad Root samples, and it was successfully validated. (c) 2012 Elsevier B.V. All rights reserved.
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Zhejiang Chinese Med Univ, Chinese Med Yinpian Co Ltd, Hangzhou 311401, Peoples R ChinaZhejiang Chinese Med Univ, Chinese Med Yinpian Co Ltd, Hangzhou 311401, Peoples R China
Yang, Liu
Zhang, Zhewen
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Zhejiang Chinese Med Univ, Chinese Med Yinpian Co Ltd, Hangzhou 311401, Peoples R ChinaZhejiang Chinese Med Univ, Chinese Med Yinpian Co Ltd, Hangzhou 311401, Peoples R China
Zhang, Zhewen
Kang, Xianjie
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Kang, Xianjie
Fang, Yingjie
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Ye, Pei
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Ye, Pei
Du, Weifeng
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Du, Weifeng
JOURNAL OF APPLIED RESEARCH ON MEDICINAL AND AROMATIC PLANTS,
2024,
43
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Beijing Univ Chinese Med, Sch Chinese Pharmacol, Beijing 100102, Peoples R ChinaTsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
Xu, Beilei
Zhang, Guijun
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Tsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
Beijing Univ Chinese Med, Sch Chinese Pharmacol, Beijing 100102, Peoples R ChinaTsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
Zhang, Guijun
Sun, Suqin
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Sun, Suqin
Xu, Changhua
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Xu, Changhua
Chen, Jianbo
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Chen, Jianbo
Tu, Ya
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Chinese Acad Chinese Med Sci, Beijing 100700, Peoples R ChinaTsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
Tu, Ya
Zhou, Qun
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Zhou, Qun
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Beijing Univ Chinese Med, Sch Chinese Pharmacol, Beijing 100102, Peoples R ChinaTsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
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Wang, Jingjuan
Wen, Chunxian
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Beijing Univ Chinese Med, Sch Chinese Pharmacol, Beijing 100102, Peoples R ChinaTsinghua Univ, Anal Ctr, Dept Chem, Beijing 100084, Peoples R China
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Beijing Univ Chinese Med, Sch Chinese Mat Med, Beijing, Peoples R China
Minzu Univ China, Sch Pharm, 27 Zhongguancun South Ave, Beijing, Peoples R ChinaBeijing Univ Chinese Med, Sch Chinese Mat Med, Beijing, Peoples R China
Wang, Le
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Beijing Univ Chinese Med, Sch Chinese Mat Med, Beijing, Peoples R ChinaBeijing Univ Chinese Med, Sch Chinese Mat Med, Beijing, Peoples R China
Dong, Ying
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