50 Glass plates 20 x 10 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.

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: ≤ 35 µm

Chromatographic testings:

A) 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

B) Steroid test

hRf-values

- hydrocortisone, steroid test:

23 - 29

- Reichstein S, steroid test: 36 - 45

- methyltestosterone, steroid test: 43 - 52

separation number

- steroid test:

≥ 10.5

Typical value determined on a conditioned plate

Eluent A) Toluene (45% rel.humidity)

Eluent B) Ethyl acetate/Toluene (95+5 v/v; 20% rel.humidity)