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Sigma-Aldrich/TLC Silica gel 60 RP-18 F₂₅₄s/1055590001/1055590001
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.safetyRow { clear: both; } .safetyLeft { width: 210px; float: left; }Properties: Related Categories Analytical/Chromatography, LPLC/TLC/Paper Chromatography, TLC and HPTLC Plates, Thin Layer Chromatography (TLC) packaging   20 units in Fibre case (1055590001) shipped in   ambient storage temp.   Storage temperature: no restrictions. specifications   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: 160 - 200 µm   Deviation of layer thickness per plate: ≤ 30 µm   Chromatographic testings: A) Cholesterin test   hRf-values - cholesterin, cholesterin test: 32 - 39   B) Steroid test   - methyltestosterone, steroid test: 14 - 22   - Reichstein S, steroid test: 26 - 36   - hydrocortisone, steroid test: 36 - 46   Typical value determined on an activated sheet (120°C, 15 min) Eluent a) aceton/ water (95/5 v/v) Eluent b) aceton/ water (60/40 v/v) Description: Other Notes 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. Safety: HS Code  3822 00 00 Storage class  10 - 13 Other liquids and solids

      西格玛奥德里奇(Sigma-Aldrich)是一家在生命科学领域有着领导地位且拥有高科技产品的公司。

西格玛奥德里奇(Sigma-Aldrich)根据研发与实验室用户的实际用途,旗下品牌包括Sigma®、Aldrich®、Fluka® 和 Supelco®,分别对应于生命科学、化学、分析和色谱领域的产品。 Vetec™ 为Sigma-Aldrich 旗下新成员,以极具亲和力的本地价格为用户提供质量可靠的常用生化和化学产品。Sigma-Aldrich 家族另一成员SAFC则是全球10大精细化工公司之一,提供全球领先的特殊化学品与生物制品。
  Sigma-Aldrich为实验室研究提供上千种耗材产品,在化学和生物领域提供特殊的产品和支持,是众多研发人员日常的放心选择。公司已推出高品质的Sigma®细胞培养类耗材,并携手BRAND、Greiner、Corning和Axygen提供卓越服务。


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