Source

Sum of Squares

df

Mean Square

F-value

p-value

Model

4398.38

9

488.71

210.46

<0.0001

significant

A-Concentration

44.32

1

44.32

19.09

0.0033

B-Adsorbent dose

23.50

1

23.50

10.12

0.0155

C-pH

2865.24

1

2865.24

1233.90

<0.0001

AB

13.00

1

13.00

5.60

0.0499

AC

29.16

1

29.16

12.56

0.0094

BC

10.24

1

10.24

4.41

0.0739

A²

0.5449

1

0.5449

0.2347

0.6429

B²

22.09

1

22.09

9.51

0.0177

C²

1366.14

1

1366.14

588.32

<0.0001

Residual

16.25

7

2.32

Lack of Fit

16.25

3

5.42

31870.64

<0.0001

significant

Pure Error

0.0007

4

0.0002

Cor Total

4414.63

16