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Nacalai Tesque COSMOSIL 15C18-MS-II Preparative HPLC Column, 15 µm, 120 Å, 50 x 500 mm, 1/Pk - 34531-71

Price: £10,080.00


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COSMOSIL C18-MS-II

Nacalai Tesque COSMOSIL 15C18-MS-II Preparative HPLC Column, 15µm, 120Å, 50mm I.D. x 500mm Length, 1/Pk

Product Number: 34531-71

COSMOSIL C18-MS-II is a monomeric type of C18 phase. A new endcapping treatment with polar groups for "shield effect" has extended the pH range and significantly improved peak shape for basic compounds. This phase is recommended for most of applications but particularly effective for low molecular weight organic compounds.

COSMOSIL Standard Reversed Phase Columns
Packing Material3C18-EBC18-MS-IIC18-AR-IIC18-PAQ
USP CodeL1
Silica GelHigh Purity Porous Spherical Silica
Average Particle Size3 µm3, 5, 15 µm
Average Pore Sizeapprox. 120 Å
Surface Areaapprox. 300 m2/g
Stationary PhaseOctadecyl Group
Bonding TypeMonomericPolymeric
Main InteractionHydrophobic Interaction
End Capping TreatmentNear-perfect Treatment
Carbon Contentapprox. 14.5%approx. 16%approx. 17%approx. 11%
pH Range2-10*1.5-7.5*2 - 7.5

Features: 

  • 3C18-EB - This phase with a better end-capping treatment offers improved peak shape and separation particularly for basic compounds.
  • C18-MS-II - This phase is recommended for most applications but particularly effective for basic compounds.
  • C18-AR-II - This phase is recommended for separations requiring acidic mobile phase conditions. It also shows superior molecular shape selectivity to monomeric type C18columns.
  • C18-PAQ - This phase is designed to offer superior retention of polar compounds and excellent reproducibility in highly aqueous mobile phases, even in 100% aqueous.

Available in the Following Configurations:

  • 2.5C18-MS-Ⅱ - 2.5 µm Particle Size
  • 3C18-MS-Ⅱ - 3 µm Particle Size
  • 5C18-MS-Ⅱ - 5 µm Particle Size
  • 15C18-MS-Ⅱ - 15 µm Particle Size
Specifications:
Product DescriptionCOSMOSIL 15C18-MS-II Packed Column
Quantity1 pc
ManufacturerNacalai Tesque
Product TypeHPLC Column
Length250 mm
Internal Diameter50 mm
Particle Size15 µm
Silica gelhigh purity porous spherical silica
Stationary phasepolymeric octadecyl group
ChemistryC18 (RP-18, ODS, Octadecyl)
Chemistry Producers TermCOSMOSIL 15C18-AR-II
Pore Size120 Å
USP ClassL1
Carbon Load16.0 %
Bet Surface Area [m2/g]300.0
Endcappingendcapped
End capping treatmentnear-perfect treatment
Column TypePreparative Column
Hardware MaterialStainless Steel
Hardware TypeReady-to-use Column
pH Minimum2.0
pH Maximum10.0
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: 34531-71
  • Manufactured by: Nacalai Tesque