1.05567
TLC aluminum sheets, Silica gel 60/Kieselguhr F₂₅₄
pkg of 25 sheets, sheet L × W 20 cm × 20 cm, aluminum support
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About This Item
UNSPSC Code:
41115711
NACRES:
NB.21
Pricing and availability is not currently available.
Recommended Products
material
aluminum support
silica gel 60 matrix
Quality Level
feature
binder Organic Polymer
fluorescent indicator
packaging
pkg of 25 sheets
technique(s)
thin layer chromatography (TLC): suitable
layer thickness
200 μm
sheet L × W
20 cm × 20 cm
particle size
10-12 μm
pore size
60 Å medium pore diameter
storage temp.
2-30°C
Related Categories
General description
25 Aluminium sheets 20 x 20 cm
Precoated Kieselguhr or mixed Silica gel/Kieselguhr plates are only of small importance nowadays. Kieselguhr layers are used like cellulose layers for the TLC separation of polar and moderately polar substances. Polyamide, on the other hand , is used for the separation of flavonoids and other phenolic substances.
Linkage
Replaces: 5567-7; 5567
Analysis Note
Layer thickness: 170 - 220 µm
Deviation of layer thickness per plate: ≤ 30 µm
Chromatografic testings:
A) colour test
hRf-values
- bleu vif organol, colour test, lipophile:
20 - 30
- Ceres Black G, colour test, lipophile: 50 - 60
- ceres Violet brn, colour test, lipophile: 60 - 70
Typical value determined on a conditioned sheet
Eluent: toluene (45% rel. humidity)
B) PHB- Ester
- phb-methylester, phb-ester-test: 20 - 30
- phb-ethylester, phb-ester-test: 30 - 40
- phb-propylester, phb-ester-test: 40 - 50
Typical value determined on a sheet
Eluent: Pentane/ glacial acetic acid (88/12 v/v)
Deviation of layer thickness per plate: ≤ 30 µm
Chromatografic testings:
A) colour test
hRf-values
- bleu vif organol, colour test, lipophile:
20 - 30
- Ceres Black G, colour test, lipophile: 50 - 60
- ceres Violet brn, colour test, lipophile: 60 - 70
Typical value determined on a conditioned sheet
Eluent: toluene (45% rel. humidity)
B) PHB- Ester
- phb-methylester, phb-ester-test: 20 - 30
- phb-ethylester, phb-ester-test: 30 - 40
- phb-propylester, phb-ester-test: 40 - 50
Typical value determined on a sheet
Eluent: Pentane/ glacial acetic acid (88/12 v/v)
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