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Replacement Information Replacement Information 1.15685.0001 replaces and is identical to 15685-1 重要规格表
描述 产品目录编号 115685 Replaces 15685-1; 15685 同义词 15685-1, 15685 描述 TLC Silica gel 60 RP-18 F₂₅₄s 概述 RP modified plates serve two purposes: act as a pilot method for HPLC and allow to choose various solvent system for special separations. 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. 产品信息 HS代码 3822 00 00 GHS安全信息 储存类别 10 - 13 其它液体及固体 规格 规格 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) 9.5 - 11.5 µm Layer thickness 200 - 270 µm Deviation of layer thickness per plate ≤ 35 µm Chromatographic testings:
A) Cholesterin testhRf-values
- cholesterin, cholesterin test
30 - 38B) Steroid test - methyltestosterone, steroid test 21 - 31 - Reichstein S, steroid test 50 - 60 - hydrocortisone, steroid test 70 - 80 Typical value determined on an activated plate (120°C, 15 min)
Eluent a) aceton/ water (95/5 v/v)
Eluent b) acetonitrile/ water (70/30 v/v)
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