Loading properties of porous layered capillary columns with sorbents of different natures

Resumo

Loading properties are studied for the commercial porous layered capillary columns GASPRO, Rt-Q-BOND, and for columns with porous layers based on the divinylbenzene-vinylimidazole copolymer (DVB-VIm), poly(trimethylsilyl)propyn (PTMSP) and ordered silica of the MCM-41 type. It is shown that the loading capacity of a column based on MCM-41 is 5–10 times higher than in the other considered columns. The loading properties of porous layered columns and columns for gas–liquid chromatography are compared.