Title of article :
Determination of total antioxidant capacity in green tea by near-infrared spectroscopy and multivariate calibration
Author/Authors :
Zhang، نويسنده , , M.H. and Luypaert، نويسنده , , J. and Fernلndez Pierna، نويسنده , , J.A. and Xu، نويسنده , , Q.S. and Massart، نويسنده , , D.L.، نويسنده ,
Issue Information :
ماهنامه با شماره پیاپی سال 2004
Abstract :
A principal component regression (PCR) model is built for prediction of total antioxidant capacity in green tea using near-infrared (NIR) spectroscopy. The modelling procedures are systematically studied with the focus on outlier detection. Different outlier detection methods are used and compared. The root mean square error of prediction (RMSEP) of the final model is comparable to the precision of the reference method.
Keywords :
outlier detection , green tea , Robust , leverage point , Residual , Total antioxidant capacity , NIR , PCR , Multivariate calibration
