Rapid identification of different cut tobacco by the classification of principal component analysis-Mahalanobis distance combined with near-infrared spectroscopy.

Rapid identification of different cut tobacco was studied by a new method.Two models of cut tobacco were established by the classification of principal component analysis(PCA)-Mahalanobis distance combined with near-infrared spectroscopy which had been applied to identify different cut tobacco.Many unknown samples were identified successfully by the two discriminating models.The recognition rate was l00%.This model was reliable.So this study can offer a new approach to the rapid identification of varieties of cut tobacco.