0 ppm

−262

2.55

−

−722

87.14

−

25 ppm

−243

4.28

40.42

−591

89.29

2.41

50 ppm

−231

3.78

32.54

−700

142.90

39.02

100 ppm

−174

8.93

71.44

−582

178.60

51.21

500 ppm

−173

7.15

64.34

−480

110.50

21.14

1000 ppm

−165

5.53

53.89

−650

94.58

7.87