ICP Analyses of “Glass” Elements for Standard Quality for 24 Weeks at 40 °C
| Element | Method | Citrate Buffer, pH 6.0 (mg/L) | Phosphate Buffer, pH 7.0 (mg/L) | Sodium Bicarbonate (mg/L) |
|---|---|---|---|---|
| Si | ICP-OES | 20.1 | 9.2 | 8.2 |
| B | ICP-MS | 2.1 | 1.1 | 2.0 |
| Al | ICP-MS | 3.0 | 0.06 | 0.05 |
| Ca | ICP-MS | 0.66 | 0.37 | 3.9 |