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Nacalai Tesque COSMOSIL 5C18-PAQ Semi-preparative HPLC Column, 5 µm, 120 Å, 10 x 50 mm, 1/Pk - 05801-31

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Cosmosil® C18-PAQ

Nacalai Tesque COSMOSIL 5C18-PAQ Semi-preparative HPLC Column, 5µm, 120Å, 10mm I.D. x 50mm Length, 1/Pk

Product Number: 05467-31

Cosmosil® C18-PAQ is a polymeric C18 like C18-AR-Ⅱ, but it is formulated to have less octadecyl groups than 518-AR-Ⅱ. It is also designed for separation with a mobile phase that does not contain organic solvents, so it provides stable retention times even with a 100% water mobile phase, and is excellent for separating hydrophilic compounds.

  • C18 column that can be used with 100% aqueous mobile phase
  • Advantageous for the analysis of hydrophilic 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.

Specifications:

Product DescriptionCOSMOSIL 5C18-PAQ Packed Column (10.0 mmI.D. x 50 mm)
Quantity1 pcs
ManufacturerNacalai Tesque
Product TypeHPLC Column
Length50 mm
Internal Diameter10.0 mm
Particle Size5 µm
Average Pore Size120 Å
ChemistryC18 (RP-18, ODS, Octadecyl)
Bonding typePolymeric
Chemistry Producers TermC18-PAQ
USP ClassL1
Carbon Load11.0 %
Bet Surface Area [m2/g]300.0
EndcappingEnd-Fitting: Waters type
End capping treatmentNear-perfect treatment
USP codeL1
Specific surface areaapprox. 300m2/g
Hardware MaterialStainless Steel
Hardware TypeSemi-preparative 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: 05801-31
  • Manufactured by: Nacalai Tesque