CCl₄

Added (µl)

Ra-226 (17.7 Bq/Vial) Activity (CPM)

PSA

50

60

70

80

90

100

110

120

0

40,414

80.92

75.95

72.88

68.90

66.53

62.76

57.78

50

38,153

79.74

74.85

71.54

67.23

63.91

58.60

51.76

100

35,255

79.82

74.21

69.43

65.77

59.98

52.57

42.93

150

33,165

78.46

71.82

67.43

62.012

54.88

45.11

34.78

200

27,975

76.90

69.50

63.30

56.06

46.76

35.69

24.88