Table 1.
Background electrolytes used for capillary electrophoresis.
| Background electrolyte | Composition | pH |
|---|---|---|
| (a) Bilirubin-10-sulfonate (ranarubin) (c = 66.3 μmol/L, 0.1 g/L) | ||
| 1 | 30 mM acetic acid + NaOH, DMSO 5% | 3.08 |
| 2 | 30 mM acetic acid + NaOH, DMSO 5% | 4.23 |
| 3 | 30 mM acetic acid + NaOH, DMSO 5% | 4.72 |
| 4 | 30 mM acetic acid + NaOH, DMSO 5% | 4.87 |
| 5 | 20 mM phosphoric acid + NaOH | 5.05 |
| 6 | 20 mM phosphoric acid + NaOH | 5.16 |
| 7 | 20 mM phosphoric acid + NaOH | 5.34 |
| 8 | 20 mM phosphoric acid + NaOH | 5.61 |
| 9 | 20 mM phosphoric acid + NaOH | 6.08 |
| 10 | 20 mM phosphoric acid + NaOH | 7.05 |
| 11 | 20 mM boric acid + NaOH | 8.22 |
| 12 | 20 mM boric acid + NaOH | 9.21 |
| 13 | 10 mM boric acid + NaOH | 10.40 |
| (b) bilirubin-10-sulfonate (ranarubin) (c = 0.663 μmol/L, 0.001 g/L) | ||
| 1 | 30 mM acetic acid + NaOH | 4.21 |
| 2 | 30 mM acetic acid + NaOH | 4.77 |
| 3 | 20 mM phosphoric acid + NaOH | 5.41 |
| 4 | 20 mM phosphoric acid + NaOH | 6.09 |
| 5 | 20 mM phosphoric acid + NaOH | 7.05 |
| 6 | 20 mM Na tetraborate + Na dihydrogenphosphate | 8.27 |
| (c) UCB (c = 2.92 μmol/L, 0.005 g/L) | ||
| 1 | 20 mM Na tetraborate + Na dihydrogenphosphate | 8.32 |
| 2 | 20 mM Na tetraborate + Na dihydrogenphosphate | 8.52 |
| 3 | 20 mM Na tetraborate + Na dihydrogenphosphate | 8.87 |
| 4 | 20 mM Na tetraborate + Na dihydrogenphosphate | 9.02 |
| 5 | 20 mM Na tetraborate + Na dihydrogenphosphate | 9.13 |
| 6 | 20 mM Na tetraborate | 9.27 |
| 7 | 20 mM Na tetraborate + NaOH | 9.51 |
| 8 | 20 mM Na tetraborate + NaOH | 9.60 |