Siyu Zhang, Ming Chen, Yong Chen, Wei Xiao, Yerui Li, Jun Wang, Xuesong Liu, Yongjiang Wu. Rapid and simultaneous determination of moisture and berberine content in Coptidis Rhizoma and Phellodendri Chinensis Cortex by near-infrared spectroscopy and chemometrics[J]. Journal of Innovative Optical Health Sciences, 2020, 13(2): 2050006