1.05568

TLC aluminum sheets, Kieselguhr F₂₅₄

pkg of 25 sheets, sheet L × W 20 cm × 20 cm, aluminum support

• 別名: Kieselguhr Coated TLC Plates
• UNSPSCコード: 41115711
• NACRES: NB.21

特性

• 物質: aluminum support; silica gel 60 matrix
• 品質水準: 100
• 特徴: binder Organic Polymer; fluorescent indicator
• 包装: pkg of 25 sheets
• テクニック: thin layer chromatography (TLC): suitable
• 層厚: 200 μm
• シートL × W: 20 cm × 20 cm
• 粒径: 10-12 μm
• ポアサイズ: 60 Å medium pore diameter
• 保管温度: 2-30°C

詳細

詳細

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.

関連事項

Replaces: 5568-7; 5568

アナリシスノート

Layer thickness: 170 - 220 µm
Deviation of layer thickness per plate: ≤ 30 µm
Chromatographic testing:
amino acid test
hRf-values
- β-alanine, short-time test:
25 - 30
- L-alanine, amino acid test: 45 - 55
- DL-Valin, amino acid test: 75 - 85
- L-leucine, amino acid test: 85 - 95
Typical value determined on a sheet
Eluent: n- propanol/ water (80/20 v/v)