HPLC empty guard columns with extremely smooth, flat, clean, and corrosion resistant inside surface via proprietary chemical polishing process. The minimized internal friction improves the effectiveness of separation. Columns with 10 mm and 20 mm lengths are available. We can also manufacture custom columns.

Specifications:

Internal roughness: Ra < 0.1 um

Internal diameter: 4.6 mm

Length: 20 mm

Material: 316 stainless steel