Concentration

/ppm

Separation Time/min

5

10

15

30

60

90

120

Water Separation/%

20

8.3

10.5

19.5

22.3

28.9

30.1

30.5

20

14.4

18.4

21.6

28.1

32.2

35.4

35.5

20

21

25.1

34.1

38

40.5

44.9

45

20

27.7

31.5

35.9

42.5

48.9

56.6

56.6