1x PBS buffer
1 8 g NaCl
2 0.2 g KCl
3 1.44 g Na2HPO4
4 0.24 g KH2PO4
5 in 800 ml of distilled H2O.
6 Adjust the pH to 7.4 with HCl. Add H2O to 1 liter. Sterilize by autoclave.