Concentration

/ppm

Separation Time/min

5

10

15

30

60

90

120

Water Separation/%

20

10.5

14.3

18.5

20.5

34.4

36.7

36.8

20

12.3

17.6

20.2

23.1

37.5

40.1

42.1

20

20.7

21.3

24.6

40.5

50.3

53

54

20

28.1

35.3

47

55

58.5

60.5

61