HPLC Column, RP Phenyl, 3um, 4.0mm ID x 100mm Length, 100A. Cogent Brand. 1 EA. Special Order Item.
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.
68324-10P-4 is an HPLC column packed with 3 µm RP Phenyl™ particles featuring a 100 Å pore size in a 4.0 mm ID x 100 mm format. The 100 mm length provides greater chromatographic resolution than shorter 50 mm columns while maintaining practical run times for routine analysis. The 3 µm particles provide improved efficiency and sharper peaks than comparable 5 µm columns, making this format an excellent balance between speed and resolving power. 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 makes it an excellent choice when conventional C18 or C8 columns do not provide adequate resolution. This format is frequently selected for method development, USP L11 substitutions, and analytical methods requiring enhanced aromatic selectivity.
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 chromatographic resolution
Typical Applications
USP L11 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
Reversed-phase HPLC
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: 4.0 mm ID x 100 mm
Length: 100 mm
Typical Flow Rate: 0.8–1.5 mL/min
Brand: Cogent
Special Order Item Information
For complete details, please review the Special Order Item Information.
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 100 mm length provides greater resolution than 50 mm columns while maintaining relatively short run times
Provides unique selectivity compared to C8 and C18 phases
Particularly useful for aromatic compounds and positional isomers
Commonly used as an alternative for USP L11 methods
Frequently selected for method development and chromatographic optimization
This is a Special Order Item