Wave band/cm−1

r2

RMSEC

RMSEP

RMSEV

9599 - 5000

0.923

0.354

0.538

0.737

8012 - 4012

0.959

0.311

0.331

0.568

7796 - 4037

0.972

0.147

0.162

0.433

9863 - 5685; 5142 - 4057

0.906

0.330

0.582

0.742

5130 - 4057; 6989 - 5569

0.917

0.389

0.470

0.595