| Paraformaldehyde stock solution (16%)
|
50 mL |
4% |
| DEPC-PBS (10X), diluted to 1X
|
150 mL |
0.75X |
|
| Add the paraformaldehyde stock solution to 130 mL of 1X DEPC-PBS while stirring. If necessary, adjust the pH to 7.4. Add 1X
DEPC-PBS to a final volume of 200 mL. Store aliquots (5-, 10-, or 20-mL) for up to 1 yr at -20°C.
|