c × 103 (g/mL)

I (u.a)

∆I (u.a)

(c/I) × 104

0.00

I0 = 36

0.45

46

10

0.45

0.90

54

18

0.50

1.35

64

28

0.48

1.70

72

36

0.47

1.80

74

38

0.47

cmc = 2.30

88