Optimization of the Extraction of the Volatile Fraction from Honey Samples by SPME-GC-MS, Experimental Design, and Multivariate Target Functions

Table 2

ANOVA table for signal intensity (a) and repeatability (b); SS = sum of squares; df = degrees of freedom; = calculated -Fisher value; -level = calculated significance level.

(a) ANOVA: model for signal intensity

	SS	df	MS		-level
	388.88	1	388.88	80.20	0.0000
	656.79	1	656.79	135.46	0.0000
salt	240.95	1	240.95	49.70	0.0000
Error	106.67	22	4.85
Total SS	1404.79	26

(b) ANOVA: model for repeatability

	SS	df	MS		-level
	218.23	1	218.23	15.05	0.0081
	70.91	1	70.91	4.89	0.0689
Error	86.99	6	14.49
Total SS	376.13	8