HPLC Column, RP C8 Octyl, 10um, 4.6mm ID x 250mm Length, 100A. Cogent Brand. 1 EA.
Additional Information:
Cogent RP C8 Octyl is a reversed-phase HPLC stationary phase manufactured using high-purity silica with traditional octyl (C8) silane bonding and complete double endcapping. The moderate hydrophobicity of the C8 ligand provides an excellent balance between retention and elution strength, making it suitable for a broad range of hydrophobic and neutral compounds. This stationary phase is commonly selected as an alternative for USP methods that specify L7 column classifications and is frequently used when reduced retention compared to C18 phases is preferred.
68008-25P is an analytical HPLC column with dimensions of 4.6 mm ID x 250 mm length, packed with 10 µm RP C8 Octyl particles featuring a 100 Å pore size. The 250 mm length provides maximum resolving power and peak capacity within the analytical RP C8 column family, making it ideal for challenging separations involving closely related compounds. The 10 µm particle size provides lower operating backpressure while supporting reliable and reproducible analytical performance.
This column is well suited for analysis of hydrophobic and neutral compounds, including long-chain fatty acids and related analytes. The C8 stationary phase provides less retention than C18 columns, often reducing analysis times while maintaining excellent selectivity. The 250 mm format remains a preferred configuration in many established and validated methods that continue to be used in pharmaceutical, industrial, and quality control laboratories today.
Key Benefits
RP C8 Octyl stationary phase
Fully double endcapped chemistry
Traditional octyl (C8) bonded phase
Suitable alternative for USP L7 methods
Lower retention than C18 columns
10 µm particles for lower operating backpressure
Maximum resolution with 250 mm length
High-purity silica support
Robust analytical performance
Commonly used in established legacy methods
Typical Applications
USP L7 methods
Long-chain fatty acid analysis
Hydrophobic compound analysis
Neutral compound analysis
Pharmaceutical analysis
Quality control testing
Method validation
Routine laboratory testing
Raw material analysis
Reversed-phase HPLC separations
Specifications
Product Type: Analytical HPLC Column
Stationary Phase: RP C8 Octyl
Chromatography Mode: Reversed Phase
USP Classification: L7
Bonded Phase: Octyl (C8)
Endcapping: Fully Double Endcapped
Particle Size: 10 µm
Pore Size: 100 Å
Column Dimensions: 4.6 mm ID x 250 mm
Length: 250 mm
Typical Flow Rate: 1.0–2.0 mL/min
Brand: Cogent
Special Order Item Information
Important Notes
Suitable as an alternative for USP L7 methods
Provides less retention than C18 stationary phases
Commonly used for long-chain fatty acid separations
Maximum column length provides enhanced resolving power and peak capacity
Frequently specified in legacy validated methods that remain in use today
Compatible with conventional HPLC systems
Special Order Item