IL-2 samples

% IL-2 Recovered at 37˚C

% IL-2 Recovered at 2˚C - 8˚C

% IL-2 Recovered at RT

0 Day

1 Day

2 Day

3 Day

5 Day

30 day

30 Day

30 Day

IL-2 in 0.1 N acetic acid (pH 3.0)

96

87

84

85

85

37

74

73

IL-2 in CTS (pH 7.5)

45

44

24

26

30

0

16

15

IL-2 in CTS + 1 mg/mL EDTA

60

52

56

57

66

2

47

34

IL-2 in CTS + 5 mg/mL Met

80

65

62

57

57

52

46

42

IL-2 in CTS + 5 mg/mL His

71

62

54

42

42

0

49

3

IL-2 in CTS + 5 mg/mL Gly

52

57

52

45

32

0

42

0

RPMI media

IL-2 in RPMI (pH 7.95)

51

34

34

34

39

0

19

9

IL-2 in RPMI + 1 mg/mL EDTA

71

59

48

63

73

24

59

28

IL-2 in RPMI + 5 mg/mL Met

86

73

78

67

68

0

62

38

IL-2 in RPMI + 5 mg/mL His

69

67

56

43

52

0

52

0

IL-2 in RPMI + 5 mg/mL Gly

53

60

47

41

32

0

0

0