1.05567

TLC aluminum sheets, Silica gel 60/Kieselguhr F₂₅₄

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

• 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: 5567-7; 5567

アナリシスノート

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)