Metal-Organic Framework MIL-53(Fe) as an Adsorbent for Ibuprofen Drug Removal from Aqueous Solutions: Response Surface Modeling and Optimization

Table 4

ANOVA data for the IBU removal models.

Source	Sum of squares	Freedom degree	Mean square	value	Prob. > F	Note
Model	9093.12	9	1010.35	28.18	<0.0001^S	^SSignificant at; ^NNonsignificant at
x1	370.63	1	370.63	10.34	0.0093^S
x2	697.69	1	697.69	19.46	0.0013^S
x3	5235.08	1	5235.08	146.00	<0.0001^S
(x1)^2	372.65	1	372.65	10.39	0.0091^S
(x2)^2	6.13	1	6.13	0.1708	0.6881^N
(x3)^2	151.38	1	151.38	4.22	0.0670^N
x1 · x2	356.18	1	356.18	9.93	0.0103^S
x1 · x3	467.61	1	467.61	13.04	0.0048^S
x2 · x3	1777.41	1	1777.41	49.57	<0.0001^S

Fit statistics: standard deviations (Std.) = 3.17; mean = 36.43; CV (%) = 16.44; R² = 0.9621.