1.05636

HPTLC plates, Silica gel 60 DIOL F₂₅₄s

pkg of 25 plates, plate L × W 20 cm × 10 cm, glass support

• UNSPSC-Code: 41115711
• NACRES: NB.21

Eigenschaften

• Materialien: glass support; silica gel 60 matrix
• Qualitätsniveau: 100
• Leistungsmerkmale: binder Organic Polymer; fluorescent indicator
• Verpackung: pkg of 25 plates
• Methode(n): HPTLC: suitable
• Schichtdicke: 200 μm
• Platte L × B: 20 cm × 10 cm
• Partikelgröße: 5-6 μm
• Porengröße: 60 Å medium pore diameter
• Lagertemp.: 2-30°C

Beschreibung

Allgemeine Beschreibung

25 Glass plates 20 x 10 cm

Our NH2, CN and DIOL -modified silica sorbents are less polar then conventional silica phases, making them ideal for separating hydrophilic or charged substances. Our moderately polar cyano- and diol-modified silica plates can be used for both normal phase and reversed phase systems. An alternative to PEI cellulose, amino-modified NH2 plates provide weak basic ion exchange characteristics with special selectivity for charged compounds.

Hinweis zur Analyse

Spezifische Oberfläche (nach BET; 5-Pkt. Messung): 480 - 540 m²/g
Porenvolumen (N₂-Isotherme): 0.74 - 0.84 ml/g
d 50 (Laserbeugung, Kornanalyse): 5 - 7 µm
Schichtdicke: 150 - 200 µm
Dickenschwankung: ≤ 35 µm
Anwendungstechnische Prüfungen:
A) Steroidtest, straight phase
hRf-Werte
- Hydrocortison, straight phase:
4 - 8
- Reichstein S, straight phase: 11 - 18
- Methyltestosteron, straight phase: 27 - 36
B) Steroidtest, Reversed phase
- Methyltestosteron, Steroidtest: 48 - 68
- Reichstein S, Steroidtest: 58 - 78
- Hydrocortison,Steroidtest: 68 - 88
Typischer Wert gemessen an einer aktivierten Platte (120°C, 15 Min)
Eluent a) Petroleumbenzin 40-60°/Aceton (80/20 v/v)
Eluent b) Aceton/Wasser (30/70 v/v)