Spectral Treatment

Factors

R²

SEP

RMSEP

Bias

RPD

No treatment

2

0.78

1.486

1.630

+0.691

1.84

Base line correction

3

0.92

0.925

0.943

+0.215

3.30

Base line and multiple scatter correction

3

0.94

0.742

1.025

+0.714

3.90

BBase line and multiple scatter corrected with 1^st derivative

3

0.93

0.892

0.905

+0.181

3.58