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Functionalization of the silicas with different phosphonic and phosphoric analogs. PPA—phenylphosphonic acid; AMP—adenosine monophosphate; DPA—n-dodecylphosphonic acid; DBP—di-n-butyl phosphate.
| Silica | Loading (mmol·gSiO2−1) | |||
|---|---|---|---|---|
| PPA (1) | AMP (2) | DPA (3) | DBP (4) | |
| Monolith | 0.527 | 2.489 | - | - |
| LiChrosorb SI 100@ | 0.742 | 1.035 | 0.636 | 0.470 |
| SBA-15 | 0.561 | 0.999 | 0.568 | 0.422 |
| MCM-41 | 0.010 | 1.049 | 0.466 | 0.264 |
