一般描述 Our classical silica TLC plates are based on a combination of our proven silica gel 60 and the addition of a unique polymeric binder resulting in a very adherent and hard surface that will not crack or blister and even allow writing with a pensil on the surface without risk to damage the layer. 25 Glass plates 5 x 20 cm 应用 Glass TLC plate, silica gel coated with flourescent indicator F254. The silica gel TLC plates come in a quantity of 25 size 5x20 cm for thin layer chromatography applications. Replaces: 5808-3; 5808 分析说明 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: 210 - 270 µm Deviation of layer thickness per plate: ≤ 35 µm Chromatographic testings: A) Colour test hRf-values - bleu vif organol, colour test, lipophile: 11 - 25 - Ceres Black G, colour test, lipophile: 34 - 48 - ceres Violet brn, colour test, lipophile: 52 - 67 separation number (colourtest, lipophile): ≥ 10.5 B) Steriod test hRf-values - hydrocortisone, steroid test: 25 - 37 - Reichstein S, steroid test: 37 - 49 - methyltestosterone, steroid test: 42 - 54 Typical value determined on a conditioned plate Eluent A) Toluene (45% rel.humidity) Eluent B) Ethyl acetate/Toluene (95+5 v/v; 20% rel.humidity) 物料 glass support silica gel 60 matrix 质量水平 100 特点 binder Organic Polymer fluorescent indicator 包装 pkg of 25 plates technique(s) thin layer chromatography (TLC): suitable 层厚度 250 μm 板长度 × 宽度 5 cm × 20 cm 粒径 10-12 μm 孔径 60 Å medium pore diameter 储存温度 2-30°C