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YMC-Pack Ph

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YMC America will make a donation to St Jude Children’s Hospital for every prepacked column sold.

Unique selectivity due to π-π interaction.

Phenyl columns provide unique selectivity when compared to aliphatic straight chain reversed phase materials such as C18, C8, and C4. The π electrons of the phenyl group can interact with the aromatic ring(s) of an analyte to increase retention relative to non-aromatic species. Phenyl also has application as an alternative to C18 and C4 for the analysis of peptides and proteins on both small-pore (120Å) and wide-pore (300Å) silica supports. Retention is decreased on wide-pore phenyl phases relative to 120Å material. Generally, as pore size increases, surface area decreases, resulting in shorter retention times.


  • Monomerically-bonded phenyl
  • Fully endcapped
  • Preferential retention of aromatic compounds
  • Alternative to alkyl-bonded phases for the analysis of peptides and other biomolecules


Typical applications include: aromatic compounds, phenols, fullerenes, sweeteners


Stationary Phase phenyl
(USP L11)
Bonding Monomeric
Particle Size* 3, 5, 10, 15, 20, 50 µm
Pore Size* 120, 200, 300 Å
Carbon Content 9%
pH Range 2 – 7.5
Temperature Upper Limit 50 °C
Temperature Recommended Range 20 – 40 °C

*not all combinations of particle & pore size are available

Preparative Particle Size

YMC-Pack Ph with particle sizes of 10 µm and higher are available as part of the YMC*Gel High Grade (HG) series. These resins boast improved mechanical stability as well as narrower particle size and pore size distribution. YMC-Pack Ph-HG can be purchased in prepacked analytical and preparative columns or in bulk resin format.

Available Formats

  • Prepacked columns & guards
    • Capillary (< 1 mm ID)
    • Analytical (1.0 – 8.0 mm ID)
    • Preparative (10 mm ID & above)
  • Bulk resin

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