1.05636

HPTLC plates, Silica gel 60 DIOL F₂₅₄s

pkg of 25 plates, plate L × W 20 cm × 10 cm, glass support

• UNSPSC 코드: 41115711
• NACRES: NB.21
• 레이어 두께: 200 μm
• 플레이트 길이 × 너비: 20 cm × 10 cm
• 특징: binder Organic Polymer; fluorescent indicator
• 공극 크기: 60 Å medium pore diameter

속성

• material: glass support; silica gel 60 matrix
• Quality Level: 100
• 특징: binder Organic Polymer; fluorescent indicator
• 포장: pkg of 25 plates
• 기술: HPTLC: suitable
• 레이어 두께: 200 μm
• 플레이트 길이 × 너비: 20 cm × 10 cm
• 입자 크기: 5-6 μm
• 공극 크기: 60 Å medium pore diameter
• 저장 온도: 2-30°C

설명

일반 설명

25 Glass plates 20 x 10 cm

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.

분석 메모

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) Steroidtest, straight phase
hRf-values
- hydrocortisone, straight phase:
4 - 8
- Reichstein S, straight phase: 11 - 18
- Methyltestosterone, straight phase: 27 - 36
B) Steroid test, reversed phase
- methyltestosterone, steroid test: 48 - 68
- Reichstein S, steroid test: 58 - 78
- hydrocortisone, steroid test: 68 - 88
Typical value determined on an activated plate (120°C, 15 min)
Eluent a) petroleum benzine 40-60°/acetone (80/20 v/v)
Eluent b) acetone/water (30/70 v/v)