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Table 2 Evaluation of different pre-treatment methods for Mn contents in cottonseed meal

From: Determination of manganese content in cottonseed meal using near-infrared spectrometry and multivariate calibration

Pre-treatment RMSE R 2
Raw data 3.219 4 0.851 1
SNV 3.167 5 0.855 9
MSC 3.167 9 0.855 8
AN 3.141 9 0.858 2
FD 2.938 4 0.876 0
SD 4.156 0 0.751 9
TB 3.178 2 0.854 9
SG 3.223 7 0.850 7
ST 3.130 3 0.859 2
SG + FD 3.010 3 0.869 8
SNV + FD 2.901 8 0.879 0
SNV + SG 3.170 9 0.855 5
  1. SNV standard normal variate, MSC multiplicative scatter correction, AN area normalize, FD first derivatives, SD Second derivatives, TB transform baseline, SG Savitzky-Golay smoothing, ST spectroscopic transformation, RMSE root mean square error, R2 prediction coefficient of determination