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): 5 - 7 µmLayer thickness: 150 - 200 µmDeviation of layer thickness per plate: ≤ 35 µmChromatographic testing: Amino acidhRf-values - Dansyl-DL-Tryptophan: 40 - 50 - Dansyl-DL- Phenylalanine: 50 - 60 - Dansyl-L-Isoleucine: 56 - 66 - a-Naphtholbenzein: 30 - 40 - Rhodamin B: 51 - 66 - indophenol blue: 70 - 80separation number (colour test, hydrophile): ≥ 10.5

Application

Glass HPTLC Silica gel 60 NH₂F₂₅₄s plates. Silica gel HPTLC plates size 10 x 10 cm, 25 sheets.

General description

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.

25 Glass plates 10 x 10 cm

Linkage

Replaces: 15647-5; 15647