Cumulative Data
| Sample name | Zeta-Potential ± SD* (mV†) | Particle size (d.nm‡) | Radiochemical purity (%) | pH |
|---|---|---|---|---|
| Unfiltered sulfur colloid | −8.27 ± 1.14 | 396–531 | 99.5 | 5.8 |
| Filtered sulfur colloid | −5.09 ± 1.68 | 11–343 | 98.5 | 6.0 |
| 4.2% sodium bicarbonate with 2% lidocaine HCl | −3.01 ± 2.24 | 10–351 | 94.1 | 6.3 |
| 8.4% sodium bicarbonate with 2% lidocaine HCl | −4.09 ± 2.90 | 10–330 | 94.0 | 7.1 |