Hamilton guard columns protect your HPLC column

• Holders for the cartridges are reusable indefinitely
• As with all guard columns these should be installed before the analytical column and after the injection valve.

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.

Guard Columns for Stainless Steel HPLC Columns
Housing Material: Anodized aluminum
Connecting Tubing Size and material: ¹/₁₆" Ext. Ø, 0.28 mm Int. Ø, 316 stainless steel
Cartridge Materials: Barrel: CTFE; Sleeve: 304 stainless steel; Frits: 316 stainless steel; Frit Porosity: 2 µm
Cartridge Dimension: 20×2.3 mm Int. Ø
Cartridge Bed Volume: 80 µl
Cartridge Packing Material: As labeled on the cartridge

Semiprep/Preparative Guard Columns for Stainless Steel HPLC Columns
Housing Material: Anodized aluminum
Connecting Tubing Size and material: ¹/₁₆" Ext. Ø, 0.28 mm Int. Ø, 316 stainless steel
Cartridge Materials: Barrel: CTFE; Sleeve: 304 stainless steel; Frits: 316 stainless steel; Frit Porosity: 2 µm
Cartridge Dimension: 20×4.6 mm Int. Ø
Cartridge Bed Volume: 332 µl
Cartridge Packing Material: As labeled on the cartridge

Guard Columns for PEEK HPLC Columns
Housing Material: Polyetheretherketone (PEEK) and Delrin
Connecting Tubing Size and material: ¹/₁₆" Ext. Ø, 0.25 mm Int. Ø, PEEK
Cartridge Materials: Barrel: PEEK; Frits: Titanium; Frit Porosity: 2 µm
Cartridge Dimension: 8.0×3.0 mm Int. Ø
Cartridge Bed Volume: 56 µl
Cartridge Packing Material: As labeled on the cartridge

They remove particulate contaminants and highly adsorptive compounds from samples, prolonging analytical column life.