Sigma-Aldrich RP-18 W 25 Hptlc Plates 10

Material

glass support
silica gel 60 matrix

Quality Level

100

Feature

binder Organic Polymer
fluorescent indicator: no

Packaging

pkg of 25 plates

Technique(S)

HPTLC: suitable

Layer Thickness

200 μm

Plate L × W

20 cm × 10 cm

Particle Size

5-6 μm

Pore Size

60 Å medium pore diameter

Storage Temp.

2-30°C

Related Categories

Thin Layer Chromatography (TLC)

General Description

25 Glass paltes 10 x 20 cmRP modified plates serve two purposes: act as a pilot method for HPLC and allow to choose various solvent system for special separations. Our RP-modified silica layers are well suited for many separation challenges that unmodified silica cannot overcome. These layers use aqueous solvent systems to separate extremely non-polar substances and analyze particular polar substances that can adapt to ion-pair chromatography. What’s more, RP-modified silica layers are less dependent on atmospheric humidity. Unlike unmodified silica, RP-phases do not exhibit catalytic activity. This makes them the plates of choice for unstable substance that tend to experience oxidative degradation.

Linkage

Replaces: 14296-6; 14296

Analysis Note

Specific surface area (according to BET; 5-Pt. measurement): 480 - 540 m²/g
Pore volume (N₂-isotherm): 0.74 - 0.84 mL/g
d 50 (laser diffraction, size distribution): 5 - 7 µM
Layer thickness: 150 - 200 µM
Deviation of layer thickness per plate: ≤ 35 µM
Chromatographic testing
hRf-values (cholesterin, cholesterin test): 54 - 66