HPLC Column, RP C8 Octyl, 3um, 4.6mm ID x 150mm Length, 100A. Cogent Brand. 1 EA.
Additional Information:
Cogent RP C8 Octyl™ is a versatile reversed-phase HPLC stationary phase designed for the separation of hydrophobic and neutral compounds. Manufactured using a traditional octyl (C8) bonded phase on ultra-high purity silica and fully double end capped, it provides strong hydrophobic interactions while often offering reduced retention compared to C18 phases. As a USP L7 equivalent phase, it is widely used for method replacement, method development, and routine analytical separations where balanced retention and selectivity are desired.
68308-15P is an HPLC column packed with 3 µm RP C8 Octyl™ particles featuring a 100 Å pore size in a 4.6 mm ID x 150 mm format. The 150 mm length provides increased resolution and peak capacity compared to shorter column formats, while the 3 µm particles deliver improved 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 hydrophobic and neutral compounds in reversed-phase chromatography and is especially well suited for long-chain fatty acid analysis. One of the more popular RP C8 column formats, it is frequently selected as a starting point for new method development and as a replacement column for USP L7 methods when additional resolving power is required.
Key Benefits
RP C8 Octyl™ stationary phase
USP L7 equivalent chemistry
Fully double end capped
Traditional octyl (C8) bonded phase
Ultra-high purity silica support
3 µm particle size
Greater efficiency than 5 µm columns
Increased peak capacity
Enhanced chromatographic resolution
Popular choice for method development
Typical Applications
USP L7 methods
Reversed-phase HPLC
Long-chain fatty acid analysis
Hydrophobic compound analysis
Neutral compound analysis
Pharmaceutical analysis
Method development
Quality control testing
Impurity profiling
Routine analytical methods
Specifications
Product Type: HPLC Column
Stationary Phase: RP C8 Octyl™
USP Classification: L7
Chromatography Mode: Reversed Phase
Bonded Phase: Octyl (C8)
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
Particularly useful for long-chain fatty acid separations
Commonly used for hydrophobic and neutral compounds
Often selected as a starting point for new HPLC method development
Frequently used as a replacement column for USP L7 methods
Methods using viscous mobile phases may approach instrument pressure limits