产品说明
一般描述
25 Glass plates 20 x 20 cm
These plates allow users to quickly and easily apply any kind of sample, even large volumes of diluted samples. Our concentrating zone plates are based on different adsorption properties of two adsorbents. The first is a large pore concentrating adsorbent where the samples are applied; the second is a selective layer for separation. Regardless of the spots’ shape, size, or position, the sample always concentrates as a narrow band where the two adsorbents overlap and where the separation starts. These plates allow users to quickly and easily apply any kind of sample, even large volumes of diluted samples.
应用
Glass TLC plate, silica gel coated with flourescent indicator F254. The silica gel TLC plates come in a quantity of 25 size 20x20 cm for thin layer chromatography applications.
联系
Replaces: 11798-7; 11798
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): 10 - 12 µm
Layer thickness: 170 - 250 µm
Deviation of layer thickness per plate: ≤ 50 µm
layer thickness concentrating zone: 90 - 130 µm
Fluctuation in the thickness of the concentration zone: ≤ 35 µm
Chromatographic testing:
colour test
hRf-values
- bleu vif organol, colour test, lipophile:
15 - 21
- Ceres Black G, colour test, lipophile: 36 - 42
- ceres Violet brn, colour test, lipophile: 51 - 58
Typical value determined on a conditioned plate
Eluent: toluene (45% rel. humidity)
产品性质
| 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 | 20 cm × 20 cm |
| 粒径 | 10-12 μm |
| 孔径 | 60 Å medium pore diameter |
| 储存温度 | 2-30℃ |
