Table 2 “Central composite rotary design matrix” with experimental values (agitation time, agitation rate, and stationary time)

33

200

16

17.23 × 10⁵ ± 0.22

21

200

16

13.79 × 10⁵ ± 0.24

27

150

13

19.14 × 10⁵ ± 0.28

33

100

16

16.88 × 10⁵ ± 0.22

27

150

13

19.34 × 10⁵ ± 0.25

27

150

18

18.02 × 10⁵ ± 0.31

27

150

13

19.18 × 10⁵ ± 0.22

21

100

16

13.55 × 10⁵ ± 0.25

27

150

13

19.18 × 10⁵ ± 0.22

27

150

13

19.04 × 10⁵ ± 0.32