TLC SILICA GEL 60 WITH CONCENTRATING ZONE 20 X 2.5 CM 25 ALUMINIUM SHEETS 20 X 20 CM

Analysis Note

Specific surface area (according to BET; 5-Pt. measurement): 480 - 540 m²/gPore volume (N₂-isotherm): 0.74 - 0.84 ml/gd 50 (laser diffraction, size distribution): 9.5 - 11.5 µmLayer thickness: 160 - 220 µmDeviation of layer thickness per plate: ≤ 40 µmlayer thickness concentrating zone: 90 - 140 µmFluctuation in the thickness of the concentration zone: ≤ 30 µmChromatographic testing: colour testhRf-values - bleu vif organol, colour test, lipophile: 11 - 25 - Ceres Black G, colour test, lipophile: 34 - 48 - ceres Violet brn, colour test, lipophile: 52 - 67separation number (colourtest, lipophile): ≥ 10.5Typical value determined on a conditioned sheet Eluent: toluene (45% rel. humidity)

General description

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.

25 Aluminium sheets 20 x 20 cm

Linkage

Replaces: 5582-7; 5582