HPLC Column, RP Phenyl, 3um, 4.6mm ID x 150mm Length, 100A. Cogent Brand. 1 EA.
Additional Information:
Cogent RP Phenyl™ is a reversed-phase HPLC stationary phase designed to provide unique selectivity through π-π interactions between aromatic analytes and the bonded phenyl functionality. Manufactured using a traditional three-carbon linker with a terminal phenyl ring bonded to ultra-high purity silica and fully double end capped, this stationary phase provides chromatographic behavior distinct from conventional alkyl phases. As a USP L11 equivalent phase, it is widely used for method replacement, method development, and applications involving aromatic and structurally related compounds.
68324-15P is an HPLC column packed with 3 µm RP Phenyl™ particles featuring a 100 Å pore size in a 4.6 mm ID x 150 mm format. The 150 mm length provides increased chromatographic resolution and peak capacity compared to shorter column formats, while the 3 µm particles provide higher efficiency and sharper peaks than comparable 5 µm columns. Typical operating flow rates are approximately 0.8–1.5 mL/min depending on mobile phase composition, temperature, and system configuration.
This column is particularly useful for the separation of positional isomers, tocopherols, flavonoids, polynuclear aromatic hydrocarbons, nitro-aromatic compounds, active pharmaceutical ingredients (APIs), natural products, and related compounds. The unique selectivity of the phenyl phase often improves aromatic and structural selectivity compared to conventional alkyl phases. This popular column format is frequently selected to improve peak shape performance in USP monographs and other regulated analytical methods.
Key Benefits
RP Phenyl™ stationary phase
USP L11 equivalent chemistry
Fully double end capped
Phenyl bonded phase
Ultra-high purity silica support
Enhanced aromatic selectivity
Excellent isomer separation capability
3 µm particle size
Greater efficiency than 5 µm columns
Improved peak shape performance
Typical Applications
USP L11 methods
USP monograph methods
Positional isomer separations
Tocopherol analysis
Flavonoid analysis
Polynuclear aromatic hydrocarbon analysis
Nitro-aromatic compound analysis
Active pharmaceutical ingredient (API) analysis
Natural product analysis
Method development
Specifications
Product Type: HPLC Column
Stationary Phase: RP Phenyl™
USP Classification: L11
Chromatography Mode: Reversed Phase
Bonded Phase: Phenyl
Endcapping: Fully Double End Capped
Particle Size: 3 µm
Pore Size: 100 Å
Column Dimensions: 4.6 mm ID x 150 mm
Length: 150 mm
Typical Flow Rate: 0.8–1.5 mL/min
Brand: Cogent
Important Notes
Suitable for conventional HPLC systems
3 µm particles provide higher efficiency and sharper peaks than comparable 5 µm columns
Generates higher backpressure than larger particle columns
The 150 mm length provides greater resolution and peak capacity than shorter column formats
Provides unique selectivity compared to C8 and C18 phases
Particularly useful for aromatic compounds and positional isomers
Frequently used to improve peak shapes in USP monograph methods
Commonly used as an alternative for USP L11 methods
Well suited for method development and chromatographic optimization