Method for distinguishing coating quality of medicine preparation
A pharmaceutical preparation and coating technology, applied in the identification of the coating quality of pharmaceutical preparations and the identification of coating quality, can solve the problems of labor and time-consuming, increasing errors, inability to comprehensively evaluate the coating quality, etc., and achieves good prediction ability, The effect of reducing interference, ensuring effectiveness and rationality
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[0031] Example 1
[0032] 1 instrument
[0033] Antaris Fourier transform near-infrared spectrometer (manufactured by Thermo Nicolet, USA) is equipped with InGaAs detector, integrating sphere diffuse reflectance sampling system, Result operating software and TQ Analyst V6 spectrum analysis software.
[0034] 2NIR scanning conditions
[0035] Using integrating sphere diffuse reflectance sampling system, NIR spectral scanning range 4000cm -1 ~10000cm -1 ; Scanning times: 32; Resolution: 8cm -1 ; Take the built-in background as a reference.
[0036] 3 Data processing and software
[0037] In this embodiment, the iPCA method is used to select the band, the SPXY method is used to select the training set and the test set, and the spectrum is appropriately preprocessed. The SVM method is used to establish the identification model of the near-infrared spectrum, and the training set k-fold cross-validation (k-fold Cross-validation) accuracy rate is used to determine the parameter γ and penalty f...
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