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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Kokot, Serge Ni, Yongnian Wang, Yong Mei, Minghua |
| Description | Country affiliation: China Author Affiliation: Wang Y ( State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China); Mei M ( Department of Chemistry, Nanchang University, Nanchang 330031, China.); Ni Y ( State Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, China); Kokot S ( School of Chemistry, Physics and Mechanical Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane 4001, Australia. Electronic address: s.kokot@qut.edu.au.) |
| Abstract | A novel combined near- and mid-infrared (NIR and MIR) spectroscopic method has been researched and developed for the analysis of complex substances such as the Traditional Chinese Medicine (TCM), Illicium verum Hook. F. (IVHF), and its noxious adulterant, Iuicium lanceolatum A.C. Smith (ILACS). Three types of spectral matrix were submitted for classification with the use of the linear discriminant analysis (LDA) method. The data were pretreated with either the successive projections algorithm (SPA) or the discrete wavelet transform (DWT) method. The SPA method performed somewhat better, principally because it required less spectral features for its pretreatment model. Thus, NIR or MIR matrix as well as the combined NIR/MIR one, were pretreated by the SPA method, and then analysed by LDA. This approach enabled the prediction and classification of the IVHF, ILACS and mixed samples. The MIR spectral data produced somewhat better classification rates than the NIR data. However, the best results were obtained from the combined NIR/MIR data matrix with 95-100% correct classifications for calibration, validation and prediction. Principal component analysis (PCA) of the three types of spectral data supported the results obtained with the LDA classification method. |
| ISSN | 13861425 |
| Volume Number | 130 |
| e-ISSN | 18733557 |
| Journal | Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-09-15 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chemistry, Pharmaceutical Drugs, Chinese Herbal Chemistry Illicium Spectroscopy, Near-infrared Algorithms Calibration Discriminant Analysis Drug Contamination Linear Models Principal Component Analysis Wavelet Analysis Journal Article Research Support, Non-u.s. Gov't Discipline Spectroscopy |
| Content Type | Text |
| Resource Type | Article |
| Subject | Spectroscopy Atomic and Molecular Physics, and Optics Analytical Chemistry Instrumentation |
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