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| RP-18 W/UV254 |
Glass
plates |
ALUGRAM®
sheets |
| Octadecyl-modified HPTLC silica layers |
Features
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Base material:
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; for preparative plates (1 mm thickness of layer) standard silica 60, particle size 5–17 µm; pH stability 2–10
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.
Partial octadecyl modification, wettable with water, carbon content 14 %
Order of polarity: silica > DIOL > NH2 > CN > RP-2 > C18-50 > RP-18 W > C18-100
Normal phase or reversed phase separation modes with eluents from anhydrous solvents to mixtures with high concentrations of water (see figure); the relative polarity of the eluent determines the polarity of the layer |
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Recommended application:
aminophenols, barbiturates, preservatives, nucleobases, polycyclic aromatic hydrocarbons, steroids, tetracyclines, plasticizers (phthalates)
For applications click here. |
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Developing time [min] for a migration distance of 7 cm for
a) RP-18 W compared to
b) Nano-SIL C 18-50 and c) Nano-SIL C 18-100
all plates with UV indicator
 methanol – water
 acetonitrile – water |
Ordering information
| Designation |
Thickness of layer |
Plate size |
Fluorescent indicator |
Plates per pack |
REF |
| Glass plates |
| RP-18 W/UV254 |
0.25 mm |
5 x 20 cm |
UV254 |
50 |
811073 |
| RP-18 W/UV254 |
0.25 mm |
10 x 10 cm |
UV254 |
25 |
811075 |
| RP-18 W/UV254 |
0.25 mm |
10 x 20 cm |
UV254 |
50 |
811072 |
| RP-18 W/UV254 |
0.25 mm |
20 x 20 cm |
UV254 |
25 |
811071 |
| RP-18 W/UV254 |
1.00 mm |
20 x 20 cm |
UV254 |
15 |
811074 |
| ALUGRAM® aluminium sheets |
| RP-18 W/UV254 |
0.15 mm |
4 x 8 cm |
UV254 |
50 |
818144 |
| RP-18 W/UV254 |
0.15 mm |
5 x 10 cm |
UV254 |
50 |
818152 |
| RP-18 W/UV254 |
0.15 mm |
5 x 20 cm |
UV254 |
50 |
818145 |
| RP-18 W/UV254 |
0.15 mm |
10 x 10 cm |
UV254 |
25 |
818147 |
| RP-18 W/UV254 |
0.15 mm |
20 x 20 cm |
UV254 |
25 |
818146 |
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