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| Nano-SIL C18 |
Glass
plates |
| Octadecyl-modified HPTLC silica layers |
Features
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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 (see figure) |
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Recommended application:
alkaloids, amino acids, preservatives, optical
brighteners, barbiturates, polycyclic aromatic hydrocarbons (PAH),
drugs, peptides, flavonoids, phenols, indole derivatives, steroids
For applications click here. |
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Developing time [min] for a migration distance of 7 cm for
a) Nano-SIL C18-50,
b) Nano-SIL C18-100 compared to
c) RP-18 W
all plates with UV indicator
 methanol – water
 acetonitrile – water |
Ordering information
| Designation |
Degree of
silanisation |
Thickness
of layer |
Plate size |
Fluorescent
indicator |
Plates
per pack |
REF |
| Glass plates |
| Nano-SIL C18-50 |
50 % |
0.20 mm |
10 x 10 cm |
– |
25 |
811054 |
| Nano-SIL C18-50 UV254 |
50 % |
0.20 mm |
10 x 10 cm |
UV254 |
25 |
811064 |
| Nano-SIL C18-100 |
100 % |
0.20 mm |
10 x 10 cm |
– |
25 |
811052 |
| Nano-SIL C18-100 UV254 |
100 % |
0.20 mm |
10 x 10 cm |
UV254 |
25 |
811062 |
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