Optimization of the Extraction of the Volatile Fraction from Honey Samples by SPME-GC-MS, Experimental Design, and Multivariate Target Functions
Table 3
Regression results for the signal intensity (a) and repeatability (b) models: effects estimates and their standard error, -Student calculated, significance -level calculated, regression coefficients, and their standard error.
(a) Regression results: model of the signal intensity
Effect
Std err (effect)
-Student
-level
Coeff
Std err (coeff)
Mean/interc.
30.40
0.44
69.8
0.000
30.40
0.44
−8.00
0.92
−8.70
0.000
−4.00
0.46
−10.40
0.92
−11.3
0.000
−5.20
0.46
salt
−6.30
0.92
−6.85
0.000
−3.20
0.46
(b) Regression results: model of the repeatability