Catalog Number - 59150-02

MicroBee Phenyl™ is a traditional phenyl-bonded HPLC stationary phase designed to provide selectivity distinct from conventional C18 columns. As part of the Cogent™ Similars product line, it has been a trusted value-oriented option for laboratories using established phenyl methods for many years. The fully endcapped phenyl bonded phase is attached to Type-A silica and is particularly useful for aromatic compounds where π-π interactions can provide selectivity advantages over standard alkyl phases.

59150-02 is a 150 mm x 3.9 mm ID analytical column packed with 10 µm, 125Å MicroBee Phenyl particles. This dimension closely matches the format used in many historical HPLC methods developed on Microbondapak™ and similar phenyl columns, making it especially valuable for method transfer and replacement applications. The 150 mm length provides a balance of chromatographic efficiency and analysis time, while the 3.9 mm ID format typically performs well at flow rates of approximately 0.8–1.5 mL/min on conventional HPLC systems.

This USP L11 column is an excellent alternative for methods developed on Microbondapak™ Phenyl and similar phenyl stationary phases. The phenyl functionality offers enhanced retention and selectivity for aromatic, conjugated, and structurally related compounds while maintaining the versatility needed for a wide range of reversed-phase separations. It is often selected during method development when C18 columns do not provide adequate resolution between closely related analytes.

Key Benefits

• Fully endcapped phenyl stationary phase

• Suitable alternative for USP L11 methods

• Compatible with many legacy Microbondapak™ methods

• Enhanced selectivity for aromatic compounds

• Different retention characteristics than C18 columns

• 125Å pore size for broad analyte compatibility

• Cost-effective Cogent Similars column

• Ideal for method transfer applications

Typical Applications

• USP L11 methods

• Reversed-phase HPLC

• Aromatic compound analysis

• Pharmaceutical analysis

• Quality control testing

• Method development

• Isomer separations

• Legacy method replacement

Specifications

• Product Type: HPLC Column

• Stationary Phase: MicroBee Phenyl

• USP Classification: L11

• Particle Size: 10 µm

• Particle Type: Type-A Silica

• Bonded Phase: Phenyl

• Endcapped: Yes

• Pore Size: 125Å

• Column Dimensions: 3.9 mm ID x 150 mm

• Length: 150 mm

• Recommended Flow Rate: 0.8–1.5 mL/min

• Brand: Cogent

Important Notes

• USP L11 column classification

• Fully endcapped phenyl stationary phase

• Designed for reversed-phase chromatography

• Ideal for legacy method replacement

• Compatible with conventional HPLC systems

• Enhanced selectivity for aromatic compounds

• Excellent alternative for established phenyl methods

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