Description
SMT offers different C18 phases of varying carbon loads for optimal selectivity:
ODL Series: SMT SAM C18 phase with the lowest functional ligand coverage confirmed with carbon analysis results of 12% carbon load. In these series, the proportional ratio of the functional C18 molecule, mixed with the proprietary spacer molecule, is reduced. The result is a packing material with maximum coverage but much lower functional ligand. Low density C18 packing material ensures faster mass transfer of solutes during separation. These phases have much lower hydrophobicity compared to the standard SMT OD-series. The spacer molecules protect the substrate from aggressive pH conditions and impact unique selectivity compared with other C18 phases.
OD Series: SMT SAM C18 phase with the highest functional ligand coverage confirmed with carbon analysis results of 24% carbon load. In these series, a very high density of the functional ligand, octadecyl (C18) molecule, is achieved through meticulous mixture of the C18 with proprietary spacer molecules to ensure maximum coverage. These phases are very hydrophobic and are designed to tolerate usage in very aggressive pH conditions and high temperatures.
Elite-C18 Series: SMT SAM C18 phase with the intermediate functional ligand coverage confirmed with carbon analysis results of 16% carbon load. In these series, the density of the functional ligand, octadecyl molecule or C18, is moderated with the proprietary spacer molecule to ensure maximum coverage. These phases are moderately hydrophobic; nevertheless, designed to tolerate usage in very aggressive pH conditions and high temperatures.
Are you looking for a column with custom specifications (pore size, particle size, length and/or I.D.) not available on this site? Please contact us as we can manufacture the exact column you need.