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
1.05715
TLC plates, Silica gel 60 F₂₅₄
pkg of 25 plates, plate L × W 20 cm × 20 cm, glass support
Synonym(s):
Thin Layer Chromatography Silica Plates
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About This Item
Recommended Products
material
glass support
silica gel 60 matrix
Quality Level
feature
binder Organic Polymer
fluorescent indicator
packaging
pkg of 25 plates
technique(s)
thin layer chromatography (TLC): suitable
layer thickness
250 μm
plate 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
Linkage
Analysis Note
Pore volume(N₂-isotherm):0.74 - 0.84 ml/g
d 50 (laserdiffraction, size distribution): 9.7 - 11.7 µm
Layerthickness: 210 - 270 µm
Deviationof layer thickness per plate: ≤ 35 µm
Chromatographic testing:
A) colourtest
hRf-values
- bleu viforganol, colour test, lipophile: 11 - 25
- CeresBlack G, colour test, lipophile: 34 - 48
- ceresViolet brn, colour test, lipophile: 52 - 67
separationnumber (colour test, lipophile): ≥ 10.5
B)Steroid test
hRf-values
- Hydrocortisone, steroid test: 25 - 37
- Reichstein S, steroid test: 37 - 49
- Methyltestosterone, steroid test: 42 - 54
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)
Storage Class Code
11 - Combustible Solids
Certificates of Analysis (COA)
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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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How can I determine the shelf life / expiration / retest date of this product?
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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.pdfHelpful?
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