pH values in different ascorbic acid solutions (n=3)
| pH value | |
|---|---|
| Values are (mean (SD)). | |
| *RPMI 1640 (Sigma R0883). | |
| 0.5 M Ascorbic acid stock solution | 2.25 (0.2) |
| Medium* alone (supplier's data) | 7.3 (0.3) |
| Medium alone (measured) | 7.4 (0.2) |
| Medium containing 500 μM ascorbic acid | 7.4 (0.3) |
| Medium containing 1000 μM ascorbic acid | 7.3 (0.2) |