Preparation, characterization and application of octadecyl modified magnesium oxide microspheres

The selective cleanup of complex matrices and simultaneous separation of benzo[a]pyrene by solid-phase extraction with MgO microspheres as sorbents

“…It was reported that the retention interactions between MgO microspheres and PAHs were mainly related with the degree of unsaturation and the number of aromatic rings in the structure of PAHs [45,46]. Furthermore, there was big difference between the retention of BaP and that of other common pollutants on MgO.…”

“…But these compounds could not be removed effectively with silica gel. This difference between MgO and commercial silica may be attributed to the following facts: the interactions between MgO and analytes enhance with the numbers of aromatic rings in the analyte structures increasing [46]. As a consequence, lipids (flax oil and DIBP) and sulphur can easily be rinsed out from MgO column, owing to lack of enough aromatic rings in their structures [41,47].…”

Facile synthesis of peanut-like Sn-doped silica nano-adsorbent for affinity separation of proteins

“…It can be seen that both the hollow SiO 2 and p-l-hSiO 2 have typical type IV adsorption isotherm with a distinct hysteresis loop. 27 Fig. 3a gives the XRD pattern of the synthesized hollow SiO 2 and p-l-hSiO 2 adsorbent.…”

“…It can be seen that both the hollow SiO 2 and p-l-hSiO 2 have typical type IV adsorption isotherm with a distinct hysteresis loop. 27 …”