Tracing the Geographical Origins of Dendrobe (<i>Dendrobium</i> spp.) by Near-Infrared Spectroscopy Sensor Combined with Porphyrin and Chemometrics

<div>Dummy codes plots of the PLSDA model for dendrobe NIR spectra with TMPP. (a) Training sample. (b) Prediction sample.</div>

Journal of Analytical Methods in Chemistry

fig4

Figure 4

Figure 4: Tracing the Geographical Origins of Dendrobe (<i>Dendrobium</i> spp.) by Near-Infrared Spectroscopy Sensor Combined with Porphyrin and Chemometrics 

Figure 4 | Tracing the Geographical Origins of Dendrobe (Dendrobium spp.) by Near-Infrared Spectroscopy Sensor Combined with Porphyrin and Chemometrics 