| OptiPrep Density Gradient Medium (60% iodixanol; Sigma-Aldrich D1556) |
40 mL |
| PBS-MK (10×, containing 1.37 m NaCl)
|
4.44 mL |
| Sterilize the 54% iodixanol solution using a disposable 0.22-µm vacuum filtration system in a tissue-culture hood and store
at room temperature. Add 60 µL of 0.5% phenol red to a 12-mL aliquot of the 54% iodixanol solution.
|