Research Article
Near-Infrared Spectroscopy as an Analytical Process Technology for the On-Line Quantification of Water Precipitation Processes during Danhong Injection
Figure 6
First derivative spectra with a 17-point Savitzky-Golay smoothing pretreatment. (a) The first derivative spectra with a 17-point Savitzky-Golay smoothing pretreatment from 4000 to 12000 cm−1; (b) the wavenumbers (1) from 5450 to 6100 cm−1; (c) the wavenumbers (2) from 7700 to 8700 cm−1.
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