Features
Base material:
- Nano-silica 60, specific surface (BET) ~ 500 m2/g, mean pore size 60 Å, specific pore volume 0.75 mL/g, particle size 2–10 μm, pH stability 2–10
- Partial (50%) or complete (100%) octadecyl modification, carbon content 7.5 and 14%, respectively
Indicator:
- acid-resistant product with a pale blue fluorescence for short-wave UV (254 nm)
- UV-absorbing substances apppear as dark-blue to black spots on a light-blue background.
Order of polarity: Silica > DIOL > NH2 > CN > RP-2 > C18-50 > RP-18 W > C18-100
Reversed phase separation mode with eluents from anhydrous solvents to mixtures with high concentrations of water.
Recommended application: alkaloids, amino acids, preservatives, optical brighteners, barbiturates, polycyclic aromatic hydrocarbons (PAH), drugs, peptides, flavonoids, phenols, indole derivatives, steroids.