HPTLC Silica gel 60 RP-18 WF₂₅₄s

半岛bd体育手机客户端 说明

一般描述

25 Glass plates 10 x 10 cm
RP 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.

联系

Replaces: 13124-1; 13124

分析说明

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

半岛bd体育手机客户端 性质