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 |
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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 |