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Table 4 Central composite plan of anti-viral drugs

From: Multivariate optimization and evaluation of quaternary mixture in bulk and co-formulated dosage forms by central composite design

S.No.

Trials

Organic phase

pH

Flow rate

Responses (Sof + Vel + Led + Dac)

X1

X2

X3

TP1

TP2

TP3

TP4

1

I

30

4.0

0.6

17,398.754

921

955

934

2

X1

70

4.0

0.6

2845.40

7132.22

4852.92

1506.5

3

X2

30

6.0

0.6

19,215.652

932

965

956

4

X1X2

70

6.0

0.6

8357.634

8403.91

5528.55

7649.63

5

X3

30

4.0

1.0

12,942.93

984

964.5

990

6

X1X3

70

4.0

1.0

2841.49

5047.30

3683.29

4144.34

7

X2X3

30

6.0

1.0

15,081.284

989

978

949

8

X1X2X3

70

6.0

1.0

5090.77

5660.94

3738.79

4541.39

9

Mid-point

50

5.0

0.8

8167.088

7808.8

1678.658

6681.036

13

X1 − 2L

10

5.0

0.8

591.83

491.08

521.66

738.19

14

X1 + 2L

90

5.0

0.8

5766.10

444.42

632.16

569.14

15

X2 − 2L

50

3.0

0.8

6269.09

4009.30

1688.17

1864.41

16

X2 + 2L

50

7.0

0.8

7678.7

3967.22

541.32

4069.66

17

X3 − 2L

50

5.0

0.4

10,603.02

8545.68

3623.83

6023.1

18

X3 + 2L

50

5.0

1.2

5649.47

4589.46

1650.81

3099.35

  1. TP Theoretical plates