Research Article

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

Figure 2

FSD-IR spectra of the Radix Bupleuri and its unofficial varieties. a. Radix Bupleuri; b. root of the Bupleurum smithii Wolff; c. root of the Bupleurum bicaule Helm.