Concentration

/ppm

Separation Time/min

5

10

15

30

60

90

120

Water Separation/%

20

8.4

12.5

17.5

21.3

33

34.2

34.5

20

10.5

15.3

20

22

36.3

38

38.5

20

21.3

21.9

21.1

35.5

47

48.1

48.8

20

26.1

33.1

45

53.5

58

58.2

58.2