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/418/501/product-dating-information-06-25-mk.pdf
58298
SUPELCOSIL™ LC-18 (5 µm) HPLC Columns
L × I.D. 25 cm × 4.6 mm, HPLC Column
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Product Name
SUPELCOSIL™ LC-18 HPLC Column, 5 μm particle size, L × I.D. 25 cm × 4.6 mm
agency
suitable for USP L1
feature
endcapped
manufacturer/tradename
SUPELCOSIL™
extent of labeling
11.0% carbon loading
parameter
≤70 °C temp. limit
400 bar pressure (5801 psi)
technique(s)
HPLC: suitable
L × I.D.
25 cm × 4.6 mm
surface area
170 m2/g
surface coverage
surface coverage 3.1 μmol/m2
matrix
silica gel, spherical particle platform
matrix active group
C18 (octadecyl) phase
particle size
5 μm
pore size
120 Å
pH
2-7.5
application(s)
food and beverages
separation technique
reversed phase
Quality Level
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Related Categories
1 of 4
This Item | 54849 | 57934 | 57935 |
|---|---|---|---|
| particle size 5 μm | particle size 5 μm | particle size 5 μm | particle size 5 μm |
| matrix active group C18 (octadecyl) phase | matrix active group C18 (octadecyl) phase | matrix active group C18 (octadecyl) phase | matrix active group C18 (octadecyl) phase |
| L × I.D. 25 cm × 4.6 mm | L × I.D. 25 cm × 21.2 mm | L × I.D. 15 cm × 2.1 mm | L × I.D. 25 cm × 2.1 mm |
| separation technique reversed phase | separation technique reversed phase | separation technique reversed phase | separation technique reversed phase |
| agency suitable for USP L1 | agency suitable for USP L1 | agency suitable for USP L1 | agency suitable for USP L1 |
| technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) HPLC: suitable | technique(s) HPLC: suitable |
Application
- Anthocyanins, flavonols, and carbohydrates in Tropea red onions (Allium cepa L.) during their determination by high performance liquid chromatography (HPLC) as well as HPLC coupled to mass spectrometry (MS) equipped with electrospray ionization (ESI) source.[1]
- Sinapyl derivatives in pineapple (Ananas comosus [L.] Merill) juice samples during their determination by semipreparative reversed phase HPLC.[2]
- Aflatoxin M1 in milk and cheese samples during its determination by HPLC with post-column derivatization and fluorescence detection.[3]
General description
Legal Information
related product
used together
Storage Class
11 - Combustible Solids
wgk
WGK 1
flash_point_f
Not applicable
flash_point_c
Not applicable
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Protocols
-Tolualdehyde; Valeraldehyde; Isovaleraldehyde
Separation of Methyl decanoate; Methyl dodecanoate; Methyl myristate; Methyl palmitate; Methyl caprylate; Methyl oleate; Methyl linoleate; Methyl linolenate; Methyl stearate
Separation of δ-Tocopherol, analytical standard; Retinyl acetate; (+)-γ-Tocopherol; α-Tocopherol, ≥95.5%; Retinol; Vitamin A (acetate), meets USP testing specifications.
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How can I determine the shelf life / expiration / retest date of this product?
1 answer-
Helpful?
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Is part No.: 58298 available as "4.6mm ID" or "4.0 mm ID" ? As per product description it is "4.6mm ID" while as per SDS description it shows "4.0 mm ID".
1 answer-
The inner diameter of this column is 4.6 mm.
Helpful?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 answer-
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
Helpful?
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Is this column comparable to the Phenomenex Luna C18 4.6 X 250mm, 5 micron
1 answer-
Yes. This column is comparable to the Phenomenex Luna C18 4.6 X 250mm, 5 micron, with respect to dimensions and phase type (USP L1).
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