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
1.02129
Chromolith® RP-18 endcapped (monolithic) HPLC Columns
L × I.D. 100 mm x 4.6 mm HPLC Column
Sinonimo/i:
Chromolith® RP-18 endcapped
Scegli un formato
| A voi/SKU | Disponibilità | Prezzo |
|---|---|---|
1 unit | Spedizione prevista il29 maggio 2026daMerck S.p.A | 1.060,00 € |
Informazioni su questo articolo
1.060,00 €
Spedizione prevista il29 maggio 2026Dettagli
Nome del prodotto
Colonna per HPLC Chromolith® Performance RP-18 endcapped 100-4,6, L × I.D. 100 mm x 4.6 mm HPLC column
material
PEEK column
Quality Segment
agency
suitable for USP L1
product line
Chromolith®
feature
endcapped
packaging
1 ea of
extent of labeling
18% Carbon loading
parameter
200 bar pressure, 45 °C max. temp.
technique(s)
HPLC: suitable, LC/MS: suitable, mass spectrometry (MS): suitable (High)
column L × I.D.
10 cm × 4.6 mm
matrix
monolithic silica
matrix active group
C18 (RP18), C18 bonding phase
pore size
13 nm mesoporosity, 2 μm macroporosity
operating pH range
2-7.5
separation technique
reversed phase
storage temp.
no temp limit
General description
Chromolith® Performance RP-18 endcapped HPLC columns have macropores with 2 μm diameter, giving a column efficiency exceeding 80,000 plates/meter. The mesopores are 13 nm (130 Å) and the surface modification is octadecylsilane with full end-capping.
Chromolith® Performance RP-18 endcapped columns fall under the USP L1 Classification. The column efficiency is comparable to a 5 μm particle size fully porous particulate column.
Chromolith®Performance RP-18 endcapped columns are perfectly suitable for LC-MS applications. The column dimension of 100 mm length and 4.6 mm I.D. is the best choice for separations of complex samples on any HPLC System.
The revolutionary, monolithic silica with its unique combination of macropores and mesopores enables:
- Rapid separations at very low column back-pressure
- High matrix tolerance, allowing time and cost savings with simplified workflows
- Cost savings due to extended column lifetimes
- Connection of columns, flow gradients and the use of mobile phases with higher viscosity
Application
- L'inquinamento salino riduce la torbidità, la materia organica disciolta e i cianobatteri in comunità sperimentali di pozze vernali. Lo studio discute le applicazioni ambientali del cloruro di calcio, concentrandosi sul suo uso nella gestione degli ecosistemi colpiti dall'inquinamento salino, dimostrando il suo ruolo nella bonifica e nella gestione ambientale (Vigil and Schuler, 2024).
Analysis Note
Contenuto in carbonio: 17,0 - 18,6 %
Pressione: ≤ 30 bar
Test di stabilità: conforme
Prestazione (antracene)
Piatti teorici (N/m) (antracene): ≥ 80.000
Fattore di ritenzione (antracene): 3,9 - 4,6
Scodatura (USP): 0,90 - 1,60%
Selettività
Fattore di separazione (antracene/progesterone): 1,95- 2,35
Legal Information
1 of 1
Questo articolo | |||
|---|---|---|---|
| matrix active group C18 bonding phase | matrix active group C18 bonding phase | matrix active group C18 bonding phase | matrix active group C18 bonding phase |
| 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 |
| pore size 13 nm mesoporosity, 2 μm macroporosity | pore size 1.5 μm macroporosity, 13 nm mesoporosity | pore size 13 nm mesoporosity, 2 μm macroporosity | pore size 13 nm mesoporosity, 2 μm macroporosity |
| product line Chromolith® | product line Chromolith® | product line Chromolith® | product line Chromolith® |
| matrix monolithic silica | matrix monolithic silica | matrix monolithic silica | matrix monolithic silica |
Still not finding the right product?
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Classe di stoccaggio
10-13 - German Storage Class 10 to 13
Certificati d'analisi (COA)
Cerca il Certificati d'analisi (COA) digitando il numero di lotto/batch corrispondente. I numeri di lotto o di batch sono stampati sull'etichetta dei prodotti dopo la parola ‘Lotto’ o ‘Batch’.
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How can I determine the shelf life / expiration / retest date of this product?
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Utile?
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How is shipping temperature determined? And how is it related to the product storage temperature?
1 risposta-
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
Utile?
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What is the particle size of Chromolith 18 endcap column
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This product is not comprised of distinct particles; rather it is a a monolithic silica column. This silica monolith contains both mesopores (~13 nm) and macropores (~2 um) Please see the following for more information:
https://www.sigmaaldrich.com/technical-documents/technical-article/analytical-chemistry/small-molecule-hplc/chromolith-hplc-and-uhplc-columnsUtile?
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