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Nacalai Tesque COSMOSIL 5PYE Pyrenylethyl Microbore Analytical HPLC Column, 5 µm, 120 Å, 1 x 150 mm, 1/Pk - 02851-71

Price: £986.00


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Cosmosil® PYE - Pyrenylethyl

Nacalai Tesque COSMOSIL 5PYE Pyrenylethyl Microbore Analytical HPLC Column, 5µm, 120Å, 1mm I.D. x 150mm Length, 1/Pk

Product Number: 02851-71

Reversed phase HPLC columns have been widely used because of their superior resolution, high theoretical plate number and ease of use. Since hydrophobic interaction is the dominant separation mechanism in reversed phase chromatography, conventional stationary phases such as C18 and C18 do not offer optimum selectivity for compounds with similar hydrophobicity. COSMOSIL offers a broad selection of columns with unique stationary phases for separation of these difficult analytes. These columns offer improved separation of structurally similar compounds that are difficult to analyse with a C18 type column.

COSMOSIL PYE (Pyrenylethyl group bonded) and COSMOSIL NPE (Nitrophenylethyl group bonded) column show unique retention characteristics based on multiple separation modes such as hydrophobic, charge transfer and π-π interactions. These columns are recommended for the separation of structural isomers.

COSMOSIL PYE column is a reversed phase column with 2-(1-Pyrenyl) ethyl groups bonded silica packing material. This column utilizes π-π interactions originating from the planar pyrene ring structure to separate structural isomers.

  • Pyrenylethyl group bonded stationary phase
  • Separation with high molecular shape selectivity or π-π interactions
  • Excellent separation for structural isomers
 COSMOSIL PYECOSMOSIL NPE
Silica GelHigh Purity Porous Spherical Silica
Average Particle Size3PYE - 3 μm
5PYE - 5 μm
5 μm
Average Pore Sizeapprox. 120 Å
Stationary Phase2-(1-Pyrenyl)ethyl GroupNitrophenylethyl Group
Main InteractionHydrophobic Interaction
π-π Interaction
Charge Transfer Interaction
Stereoselectivity
Hydrophobic Interaction
π-π Interaction
Dipole-Dipole Interaction
Carbon Contentapprox. 18%approx. 9%

Column Specifications:

Product descriptionCosmosil® 5PYE Packed Column 1.0mmx150mm
Quantity1 pc
ManufacturerNacalai Tesque
BrandCosmosil
Product TypeHPLC Column
Length150 mm
Internal Diameter1.0 mm
Particle Size5 µm
Chemistry Producers TermPYE (Pyrenylethyl)
Pore Size120 Å
Carbon Load18.0 %
Bet Surface Area [m2/g]300.0
EndcappingEnd-Fitting: Waters type
Column TypeAnalytical Column
Hardware MaterialStainless Steel
Hardware TypeReady-to-use Column
pH Minimum2.0
pH Maximum7.5
Mode of SeparationReversed Phase Chromatography (RP)
TechnologyHigh-Performance Liquid Chromatography (HPLC)
MatrixSilica
Particle Morphologyspherical, fully porous


 Additional Column Sizes are available - Please contact our Sales Team with your requirements.

Cosmosil Columns Online Catalogue:


  • Model: 02851-71
  • Manufactured by: Nacalai Tesque