Catalog Number - 59052-02-4

MicroBee Phenyl™ is a traditional phenyl-bonded HPLC stationary phase designed to provide selectivity that differs from conventional C18 columns. As part of the Cogent™ Similars product line, it has been a trusted value-oriented alternative for laboratories running established phenyl methods for many years. The bonded phenyl functionality offers enhanced interactions with aromatic compounds, making it particularly useful when analytes are not adequately resolved on alkyl-bonded phases.

59052-02-4 is a 300 mm x 4.6 mm ID analytical column packed with 10 µm, 125Å MicroBee Phenyl particles. The extended 300 mm length maximizes resolving power and theoretical plate count, making it ideal for highly complex separations, impurity profiling, and demanding analytical methods where chromatographic resolution is the primary objective. The industry-standard 4.6 mm ID format typically operates at approximately 1.0–2.0 mL/min on conventional HPLC systems.

This USP L11 column is manufactured using a fully endcapped phenyl bonded phase attached to Type-A silica. It serves as an excellent alternative for methods developed on Microbondapak™ Phenyl and similar phenyl columns. The phenyl functionality can provide improved selectivity for aromatic, conjugated, and structurally similar compounds, making it a valuable option for method development when traditional C18 columns do not provide adequate separation.

Key Benefits

• Fully endcapped phenyl stationary phase

• Suitable alternative for USP L11 methods

• Enhanced selectivity for aromatic compounds

• Maximum resolution from 300 mm column length

• Different retention characteristics than C18 columns

• 125Å pore size for broad analyte compatibility

• Cost-effective Cogent Similars column

• Compatible with legacy phenyl methods

Typical Applications

• USP L11 methods

• Reversed-phase HPLC

• Aromatic compound analysis

• Pharmaceutical analysis

• Impurity profiling

• Method development

• Alternative selectivity screening

• Complex sample separations

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: 4.6 mm ID x 300 mm

• Length: 300 mm

• Recommended Flow Rate: 1.0–2.0 mL/min

• Brand: Cogent

Important Notes

• USP L11 column classification

• Fully endcapped phenyl stationary phase

• Compatible with conventional HPLC systems

• Industry-standard 4.6 mm ID analytical format

• Maximum resolution for challenging separations

• Alternative selectivity to traditional C18 phases

• Excellent replacement for many legacy phenyl methods

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