If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
1.05559
TLC aluminum sheets, Silica gel 60 RP-18 F₂₅₄s
pkg of 20 sheets, sheet L × W 20 cm × 20 cm, aluminum support
Synonym(s):
TLC RP-18 Silica gel 60 aluminum sheets
About This Item
Recommended Products
material
aluminum support
silica gel 60 matrix
Quality Level
feature
binder Organic Polymer
fluorescent indicator
packaging
pkg of 20 sheets
technique(s)
thin layer chromatography (TLC): suitable
layer thickness
200 μm
plate L × W
20 cm × 20 cm
sheet L × W
20 cm × 20 cm
particle size
10-12 μm
pore size
60 Å medium pore diameter
storage temp.
2-30°C
General description
Application
Linkage
Analysis Note
Pore volume (N₂-isotherm): 0.74 - 0.84 ml/g
d 50 (laser diffraction, size distribution): 9.7 - 11.7 µm
Layer thickness: 160 - 200 µm
Deviation of layer thickness per plate: ≤ 30 µm
Chromatographic testings:
A) Cholesterin test
hRf-values
- cholesterin, cholesterin test:
32 - 39
B) Steroid test
- methyltestosterone, steroid test: 14 - 22
- Reichstein S, steroid test: 26 - 36
- hydrocortisone, steroid test: 36 - 46
Typical value determined on an activated sheet (120°C, 15 min)
Eluent a) aceton/ water (95/5 v/v)
Eluent b) aceton/ water (60/40 v/v)
related product
Certificates of Analysis (COA)
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Articles
Thin Layer Chromatography Troubleshooting: This article details TLC tips and tricks that one must consider while performing different steps of the technique.
Thin Layer Chromatography Troubleshooting: This article details TLC tips and tricks that one must consider while performing different steps of the technique.
Thin Layer Chromatography Troubleshooting: This article details TLC tips and tricks that one must consider while performing different steps of the technique.
Thin Layer Chromatography Troubleshooting: This article details TLC tips and tricks that one must consider while performing different steps of the technique.
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How is shipping temperature determined? And how is it related to the product storage temperature?
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Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf
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