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504971

Supelco

Discovery® C18 (5 µm) HPLC Columns

L × I.D. 25 cm × 4.6 mm, HPLC Column

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About This Item

UNSPSC Code:
41115700
eCl@ss:
32110501
L × I.D.:
25 cm × 4.6 mm
surface area:
300 m2/g
particle size:
5 μm
matrix active group:
C18 (octadecyl) phase
pore size:
180 Å
matrix:
silica gel, high purity, spherical particle platform
Pricing and availability is not currently available.

Product Name

Discovery® C18 HPLC Column, 5 μm particle size, L × I.D. 25 cm × 4.6 mm

Agency

suitable for USP L1

Quality Level

100

feature

endcapped

manufacturer/tradename

Discovery®

extent of labeling

12% Carbon loading

parameter

≤70 °C temp. range
400 bar pressure (5801 psi)

technique(s)

HPLC: suitable

L × I.D.

25 cm × 4.6 mm

surface area

300 m2/g

surface coverage

3 μmol/m2

impurities

<10 ppm metals

matrix

silica gel, high purity, spherical particle platform

matrix active group

C18 (octadecyl) phase

particle size

5 μm

pore size

180 Å

operating pH range

2-8

application(s)

food and beverages

separation technique

reversed phase

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General description

Use Discovery® C18 for any method that specifies a C18. The exceptional peak shape, reproducibility, and stability make it the column of choice for all C18 methods from demanding to routine.

Features and Benefits

  • Excellent reproducibility
  • Exceptional peak shape for basic and acidic analytes
  • Stable, low-bleed LC-MS separations
  • Separation of peptides and small proteins
  • Lower hydrophobicity than many comparable C18 columns, providing faster analysis

Recommended products

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Legal Information

Discovery is a registered trademark of Merck KGaA, Darmstadt, Germany

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Storage Class Code

13 - Non Combustible Solids

WGK

WGK 1

Flash Point(F)

Not applicable

Flash Point(C)

Not applicable

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
293681-06
293681-05
293681-04
293681-03
293681-02

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T Nagano et al.
Journal of dental research, 88(9), 823-828 (2009-09-22)
Mmp-20 and Klk4 are the two key enamel proteases. Can both enzymes process amelogenin to generate the major cleavage products that accumulate during the secretory stage of amelogenesis? We isolated Mmp-20 and Klk4 from developing pig teeth and used them
T R Shantha Kumar et al.
Journal of pharmaceutical and biomedical analysis, 38(1), 173-179 (2005-05-24)
A simple, precise and accurate isocratic reverse-phase liquid chromatography method with programmed wavelength detection has been validated to quantify DRF-4367 and Phenol red, simultaneously for application in rat in situ single pass intestinal perfusion study to assess intestinal permeability of
Abbas Khan et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 879(24), 2423-2429 (2011-07-26)
A novel isocratic reversed-phase high performance liquid-chromatography/ultraviolet detection method for simultaneous determination of cefdinir and cefixime in human plasma was developed and validated after optimization of various chromatographic conditions and other experimental parameters. Sample preparation based on a simple extraction
Himal Paudel Chhetri et al.
Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society, 22(5), 483-487 (2014-12-05)
This study presents the optimization of a simple HPLC-UV method for the determination of metformin in human plasma. Ion pair separation followed by UV detection was performed on deproteinized human plasma samples. The separation was carried out on a Discovery
Ramisetti Nageswara Rao et al.
Journal of separation science, 32(9), 1312-1322 (2009-04-29)
Modafinil, adrafinil and their related substances were synthesized and analyzed by RP-LC with ESI-MS/MS. The ionization mode, polarity, cone voltage, and chromatographic conditions were evaluated. The optimum LC-MS conditions to obtain fragment ions indispensable for identification of the structures were
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Questions

1–2 of 2 Questions  

  1. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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  2. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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

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