Table 2.

The adjusting parameters (r2, p1, p2 and RMSEP) from the PLS prediction models for the data from the validation set.

	r2	p1	p2	RMSEP
Rotating electrodes	0.876	1.01	9.1 × 10−5	3.6 × 10−4
Static electrodes	0.809	0.805	4.5 × 10−4	4.7 × 10−4