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TLC Silica gel 60/Kieselguhr F254
| 产品编号： | 4060217 |
| 规格： | pkg of 25 sheets, sheet L × W 20 cm × 20 cm, aluminum support |
| 包装规格： | 25 UNITS |
| 产品类别： | 进口试剂 |
| 品牌： | Supelco |
| 优惠价： | 立即咨询 |
产品性质
| material【物料】 | aluminum support silica gel 60 matrix |
| Quality Level【质量水平】 | 100 |
| feature【特点】 | binder Organic Polymer fluorescent indicator |
| packaging【包装】 | pkg of 25 sheets |
| technique(s) | thin layer chromatography (TLC): suitable |
| layer thickness【层厚度】 | 200 μm |
| sheet L × W【薄片长度 × 宽度】 | 20 cm × 20 cm |
| Particle size【粒径】 | 10-12 μm |
| pore size【孔径】 | 60 Å medium pore diameter |
| storage temp.【储存温度】 | 2-30℃ |
基本信息
| General description【一般描述】 | 25 Aluminium sheets 20 x 20 cm Precoated Kieselguhr or mixed Silica gel/Kieselguhr plates are only of small importance nowadays. Kieselguhr layers are used like cellulose layers for the TLC separation of polar and moderately polar substances. Polyamide, on the other hand , is used for the separation of flavonoids and other phenolic substances. |
| Linkage【联系】 | Replaces: 5567-7; 5567 |
| Analysis Note【分析说明】 | Layer thickness: 170 - 220 µm Deviation of layer thickness per plate: ≤ 30 µm Chromatografic testings: A) colour test hRf-values - bleu vif organol, colour test, lipophile: 20 - 30 - Ceres Black G, colour test, lipophile: 50 - 60 - ceres Violet brn, colour test, lipophile: 60 - 70 Typical value determined on a conditioned sheet Eluent: toluene (45% rel. humidity) B) PHB- Ester - phb-methylester, phb-ester-test: 20 - 30 - phb-ethylester, phb-ester-test: 30 - 40 - phb-propylester, phb-ester-test: 40 - 50 Typical value determined on a sheet Eluent: Pentane/ glacial acetic acid (88/12 v/v) |
