| Constant | Constant | Variant | Variant | Variant | Variant | Variant |
| K2HPO4 | 10 mM | pH 5 | pH 6 | pH 7 | pH 8 | pH 9 |
| K2HPO4 | 20 mM | pH 5 | pH 6 | pH 7 | pH 8 | pH 9 |
| TEAB | 40 mM | pH 5 | pH 6 | pH 7 | pH 8 | pH 9 |
| TEAB | pH 7 | 1 mM | 10 mM | 20 mM | 30 mM | 40 mM |
| K2PO4 | pH 7 | 1 mM | 10 mM | 20 mM | 30 mM | 40 mM |
| 10 mM | pH 7 | K2PO4 | TEAA | TEAB | NH4CH3CO2 |
|
| TEAB | pH 7, 40 mM | Oligo-20 | Oligo-25 | Oligo-30 | Oligo-35 | Oligo-40 |