Rapid analysis of composition and reactivity in cellulosic biomass feedstocks with near-infrared spectroscopy

Table 2 Summary statistics for the PLS-2 calibration model for composition using the Thermo FT-NIR spectrometer with autosampler

Constituent	Samples	Factors	RMSEC	RMSECV	R ²	Slope	Intercept
Glucan	232	9	1.7	1.9	0.91	0.91	2.9
Xylan	232	9	1.1	1.2	0.87	0.87	2.3
Lignin	232	9	1.1	1.2	0.88	0.89	1.7
Ash	232	9	1.3	1.4	0.84	0.84	1.0

RMSECV values are slightly higher than the uncertainty of the primary analytical methods. Slope and intercept describe the line of best fit for cross-validation.
RMSEC root-mean-square-error of the calibration model, RMSECV root-mean-square-error of cross-validated model, R ² square of the correlation coefficient of the cross-validated model.

ISSN: 2731-3654