Table 3.
Concentrations of solutions having a protective effect in relation to the concentration of a saturated solution
| Substance | Concn needed for maximum protection (M) | Saturating concn (M)a | % of saturation at concn giving maximum protection |
|---|---|---|---|
| Tris | 2.0 | 4.13 | 48 |
| HEPES | 2.0 | 2.25 | 89 |
| MOPS | 2.0 | 4.7 | 43 |
| KCl | 4.0 | 4.61 | 87 |
| NaCl | 4.0 | 6.13 | 65 |
| Na2HPO4 | 0.061b | 0.36 | 27 |
| DMG | 0.1 | 0.27 | 37 |
| Na2SO4 | 0.1 | 1.29 | 7.8 |
| CaCl2 | 0.1 | 6.71 | 1.5 |
a
See the supplemental material.
b
Based on the concentration of the disodium salt in 0.1 M buffer at pH 7.0.