pH value

2 h dissolution rate/%

4 h dissolution rate/%

8 h dissolution rate/%

1

84.48

86.37

86.38

2

80.39

81.21

81.21

3

31.26

34.87

34.89

4

15.37

21.86

21.86

5

1.34

9.05

9.05

6

0.02

8.31

8.32

7

0

0

0