Welch Materials UHPLC Guard Column Cartridge Ultisil XB-C18, 2.1 x 5 mm, 2 pc/PAK

Ultisil XB-C18 is the most commonly used column in the market. It can substitute Waters Symmetry C18, Agilent Zorbax XDB C18, Phenomenex Luna C18, Supelcosil LC-18-DB, YMC ODS-AM, Alltima C18, GL, Inertsil ODS-2 etc. XB-C18 has high theoretical plates and peak capacity, so it’s suitable for analysis of complex samples.