Effect of Different Spectral Collection Methods on Handheld Near Infrared Modeling
The sliding method and 6-point method were used to scan tobacco leaf raw tobacco, while sliding method was used for tobacco end samples.After preprocessing with second-order derivatives, removing abnormal samples, selecting wavelengths and performing one-to-one inter-action verification, partial least squares methods were used to establish nicotine models.The correlation coefficients of the three methods were 0.97, 0.98 and 0.99, respectively, the corrected standard error (SEC) of the three methods were 0.20％, 0.25％ and 0.09％, respectively. The results showed that the sliding method for scanning tobacco leaf samples was superior to the 6-point method, and the detected tobacco leaf samples were more representative and their fast results could meet the actual application requirements, saving a lot of time in the application process, and significantly improving work efficiency.
Near infraredSpectral collection methodMathematical indexModelFlue-cured tobacco
万方数据
维普
