Equisil MOS

C8 Reversed-Phase HPLC Column for Moderate Retention and High Reproducibility

Equisil MOS is a reversed-phase HPLC column, based on fully porous, high-purity silica particles bonded with octyl chains. The medium-length alkyl chain offers moderate hydrophobic retention, making Equisil MOS ideal for analytes that elute too late on C18 phases or for methods requiring faster run times with excellent selectivity. With its robust bonding chemistry, reproducible retention, and high mechanical stability, Equisil MOS supports reliable performance in both routine QC and method development workflows.

Equisil MOS offers reliable, medium-retention reversed-phase performance – an excellent C8 choice for laboratories seeking efficiency, selectivity, and reproducibility in daily HPLC analysis.

Key Features

  • C8-bonded reversed-phase silica – USP L7 classification

  • Moderate retention ideal for mid-polarity compounds

  • Fully porous high-purity silica for excellent peak shape

  • Suitable for isocratic and gradient elution

Typical Applications

  • Analysis of pharmaceutical compounds with moderate hydrophobicity

  • Faster reversed-phase separations compared to C18

  • Method development requiring alternative selectivity

  • Routine HPLC in pharmaceutical, food, and chemical industries

Specifications

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Particle Sizes
  • 3 µm
  • 5 µm
  • 10 µm
Pore Size 120 Å
Surface Area 180 m²/g
Phase/Modification C8
Particle Type
Separation Mode
USP Code
Endcapping No
Carbonload 6 %
pH Range 2 to 8

Material Numbers

Phase Material Number
Equisil MOS, 3 µm e23.80.
Equisil MOS, 5 µm e25.80.
Equisil MOS, 10 µm e20.80.
Equisil CPS-2 Equisil MOS-2

Any questions?
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info@dr-maisch.com +49 7073 5035 7

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