| 品目錄編號 | 105559 |
| Replaces | 5559-7; 5559 |
| 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. 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. |
| 產品信息 | |
|---|---|
| HS代碼 | 3822 00 00 |
| Quality Level | MQ100 |
| 應用 | |
|---|---|
| 應用 | Aluminum TLC plates, RP-18 modified silica gel coated with flourescent indicator F254s. The RP-18 modified silica gel TLC plates come in a quantity of 20 size 20x20 cm for thin layer chromatography applications. |
| GHS安全信息 | |
|---|---|
| 儲存類別 | 10 - 13 其它液體及固體 |
| 儲存和貨運信息 | |
|---|---|
| 儲存 | 于 +2°C 到 +30°C儲存. |
| 規格 | |
|---|---|
| Specific surface area (according to BET; 5-Pt. measurement) | 480 - 540 m2/g |
| Pore volume (N?-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) | |
