Study on the Identification of Radix Bupleuri from Its Unofficial Varieties Based on Discrete Wavelet Transformation Feature Extraction of ATR-FTIR Spectroscopy Combined with Probability Neural NetworkReportar como inadecuado




Study on the Identification of Radix Bupleuri from Its Unofficial Varieties Based on Discrete Wavelet Transformation Feature Extraction of ATR-FTIR Spectroscopy Combined with Probability Neural Network - Descarga este documento en PDF. Documentación en PDF para descargar gratis. Disponible también para leer online.

International Journal of Analytical Chemistry - Volume 2015 2015, Article ID 950209, 6 pages -

Research Article

Department of Computer Engineering, Yiwu Industrial and Commercial College, Yiwu 322000, China

College of Chemistry and Life Science, Zhejiang Normal University, Yingbin Avenue 688, Jinhua 321004, China

Received 12 September 2014; Accepted 16 January 2015

Academic Editor: Günther K. Bonn

Copyright © 2015 Wenying Jin et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

The attenuated total reflection-Fourier transform infrared spectroscopy ATR-FTIR was employed to acquire the infrared spectra of Radix Bupleuri and its unofficial varieties: the root of Bupleurum smithii Wolff and the root of Bupleurum bicaule Helm. The infrared spectra and spectra of Fourier self-deconvolution FSD, discrete wavelet transform DWT, and probability neural network PNN of these species were analyzed. By the method of FSD, there were conspicuous differences of the infrared absorption peak intensity of different types between Radix Bupleuri and its unofficial varieties. But it is hard to tell the differences between the root of Bupleurum smithii Wolff and the root of Bupleurum bicaule. The differences could be shown more clearly when the DWT was used. The research result shows that by the DWT technology it is easier to identify Radix Bupleuri from its unofficial varieties the root of Bupleurum smithii Wolff and the root of Bupleurum bicaule.





Autor: Wenying Jin, Chayan Wan, and Cungui Cheng

Fuente: https://www.hindawi.com/



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