Model Transfer of Routine Chemical Components in Redried Lamina on Fourier Transform Near Infrared Spectroscopy

In order to realize the use and share of model of routine chemical components in redried lamina on Fourier transform near infrared (NIR) instruments of different brands, the samples of redried lamina produced in Guizhou area were taken as the research object. The standard samples were selected by Kennard-Stone algorithm. Three model transfer algorithms, including the bias correction (BC), slope bias correction (SBC) and spectral space transformation (SST), were applied to model transfer on Fourier transform NIR instruments of different brands, and the transfer effects of the three model transfer algorithms were analyzed. The results showed that when the model of routine chemical components in redried lamina built from master instrument was directly applied to the slave instruments, there was significant difference in the predicted values between these instruments. The model transfer of Fourier transform NIR instruments of different brands could be realized by BC, SBC and SST. Among them, SST gave the best transfer results.