Concentration

/ppm

Separation Time/min

5

10

15

30

60

90

120

Water Separation/%

20

5.9

9.8

14.4

19.5

20.5

25.4

26.5

20

10.1

13.5

18.9

22.1

28.3

30.1

30.2

20

18.5

20.6

27.5

32.2

35.5

41.5

41.6

20

25.5

30.3

37.3

41.7

42.2

54.4

55.9