Equisil BDS C18

Base-Deactivated C18 Column for Improved Peak Shape and Reliable Reversed-Phase Analysis

Equisil BDS C18 is a reversed-phase HPLC column based on fully porous, high-purity silica, bonded with octadecyl chains and treated with base deactivation (BDS) to minimize silanol interactions. This enhances peak shape, especially for basic and polar analytes, and improves reproducibility in routine reversed-phase workflows. Equisil BDS C18 is ideal for pharmaceutical QC, impurity profiling, and general-purpose reversed-phase separations.

Equisil BDS C18 provides enhanced selectivity and peak shape for sensitive reversed-phase analyses – a dependable column for high-quality HPLC workflows.

Key Features

  • Octadecyl (C18) bonded phase with base deactivation – USP L1

  • Reduced silanol activity for improved peak symmetry

  • Strong hydrophobic retention and stable performance

  • Fully porous silica for robust, reproducible separations

  • Available in 3 µm, 5 µm, and 10 µm particle sizes

Typical Applications

  • Basic pharmaceuticals and related impurities

  • Routine reversed-phase analysis in regulated environments

  • Method development and validation

  • Food, chemical, and environmental testing

Specifications

Request Product
Particle Sizes
  • 3 µm
  • 5 µm
  • 10 µm
Pore Size 130 Å
Surface Area 170 m²/g
Phase/Modification C18
Particle Type
Separation Mode
USP Code
Endcapping Yes
Carbonload 11 %
pH Range 2 to 8

Material Numbers

Phase Material Number
Equisil BDS C18, 3 µm e23.9b.
Equisil BDS C18, 5 µm e25.9b.
Equisil BDS C18, 10 µm e20.9b
Equisil BDS C8 Equisil BDS CPS

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

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