Determination of total antioxidant capacity in green tea by near-infrared spectroscopy and multivariate calibration

被引：95
|
作者：
Zhang, MH [1 ]
Luypaert, J [1 ]
Pierna, JAF [1 ]
Xu, QS [1 ]
Massart, DL [1 ]
机构：
[1] Free Univ Brussels, Pharmaceut Inst, B-1090 Brussels, Belgium
来源：
TALANTA | 2004年 / 62卷 / 01期
关键词：
multivatiate calibration; robust; leverage point; residual; total antioxidant capacity; NIR; PCR; outlier detection; green tea;
D O I：
10.1016/S0039-9140(03)00397-7
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
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. (C) 2003 Elsevier B.V. All rights reserved.
引用
收藏
页码：25 / 35
页数：11
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