Near-Infrared Spectroscopy as a Process Analytical Technology Tool for Monitoring the Steaming Process of <i>Gastrodiae rhizoma</i> with Multiparameters and Chemometrics

<div>The efficient spectral intervals selected by si-PLS for the prediction of four phenolic compounds: (a) gastrodin, (b) <i>p</i>-hydroxybenzyl alcohol, (c) parishin B, and (d) parishin A.</div>

Journal of Analytical Methods in Chemistry

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Figure 3: Near-Infrared Spectroscopy as a Process Analytical Technology Tool for Monitoring the Steaming Process of <i>Gastrodiae rhizoma</i> with Multiparameters and Chemometrics 

Figure 3 | Near-Infrared Spectroscopy as a Process Analytical Technology Tool for Monitoring the Steaming Process of Gastrodiae rhizoma with Multiparameters and Chemometrics 