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 traditional dendrobe NIR spectra. (a) Training sample. (b) Prediction sample.</div>

Journal of Analytical Methods in Chemistry

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Figure 3: Tracing the Geographical Origins of Dendrobe (<i>Dendrobium</i> spp.) by Near-Infrared Spectroscopy Sensor Combined with Porphyrin and Chemometrics 

Figure 3 | Tracing the Geographical Origins of Dendrobe (Dendrobium spp.) by Near-Infrared Spectroscopy Sensor Combined with Porphyrin and Chemometrics 