Hamilton Company offers one of the most comprehensive selections of chromatography columns in the industry.

Each column is manufactured under rigorous criteria and tested for resolution and retention time accuracy. Hamilton guard columns protect your analytical HPLC column. They remove particulate contaminants and highly adsorptive compounds from samples, prolonging analytical column life. Guard columns are modular and cartridge replacement is easy and tool free. Guard column cartridge holders are available in stainless steel and PEEK materials, depending on the column. Both designs are optimized to reduce dead volume and prevent extra column band broadening.

Holders for the cartridges are reusable indefinitely. Technical specifications are shown below for each type of guard column and holder and an exploded drawing for each holder can be found in the Downloads and Links tab. As with all guard columns these should be installed before the analytical column and after the injection valve.

Housing Material: Polyetheretherketone (PEEK) and Delrin.

Connecting Tubing Size and material: ¹/₁₆" Out.Ø, 0.25 mm Int.Ø, PEEK.

Cartridge Materials:
Barrel: PEEK
Frits: Ceramic
Frit Porosity: 2 µm
Cartridge Dimension: 8.0×3.0mm Int.Ø
Cartridge Bed Volume: 56 µl
Cartridge Packing Material: As labeled on the cartridge
Particle Size: 12 to 20 µm for polymeric packings, 10 µm for silica supports
Chemical Compatibility: Recommended for use with virtually all solvents except high concentrations of sodium chloride.