1.11846

TLC plates, Silica gel 60 F₂₅₄ with concentrating zone 10 x 2.5 cm

pkg of 50 plates, plate L × W 20 cm × 10 cm, glass support

• NACRES: NB.21
• UNSPSC Code: 41115711

Properties

• Quality Level: 100
• material: glass support, silica gel 60 matrix
• feature: binder Organic Polymer, fluorescent indicator
• packaging: pkg of 50 plates
• technique(s): thin layer chromatography (TLC): suitable
• layer thickness: 250 μm
• plate L × W: 20 cm × 10 cm
• particle size: 10-12 μm
• pore size: 60 Å medium pore diameter
• storage temp.: 2-30°C

Description

General description

50 Glass plates 10 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.

Application

Glass TLC plate, silica gel coated with flourescent indicator F254. The silica gel TLC plates come in a quantity of 50 size 10x20 cm for thin layer chromatography applications.

Analysis Note

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): 9.7 - 11.7 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: tuluene (45% rel.humidity)

Other Notes

Replaces: 11846-6; 11846