Merck, 1055470001, HPTLC aluminum sheets, silica gel 60

General description
25 Aluminium sheets 20 x 20 cm
HPTLC plates deliver fast and quantitative analysis of complex samples for manual or automated use. Our HPTLC silica plates work three times faster than conventional TLC plates – and they are more sensitive. The particle sizes range in HPTLC is between 4-8 µm, which creates a smoother surface and a higher separation power than TLC plates.
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): 5 - 7 µm
Layer thickness: 150 - 200 µm
Deviation of layer thickness per plate: ≤ 30 µm
Chromatographic testing:
colour test
hRf-values
- bleu vif organol, colour test, lipophile:
17 - 22
- Ceres Black G, colour test, lipophile: 38 - 43
- ceres Violet brn, colour test, lipophile: 58 - 64
separation number (colourtest, lipophile): ≥ 10.0
Typical value determined on a conditioned sheet
Eluent: toluene (45% rel. humidity)
Other Notes
Replaces: 5547-7; 5547