Welch Materials HPLC Guard Column Cartridge Ultisil HILIC Amide, 3 μm, 120Å, 4.6 x 10 mm, 2 pc/PAK

Ultisil HILIC Amide column is a special column designed for HILIC mode. As amide group has strong hydrophilicity, stability and electrically neutral, Ultisil Amide has longer life, better separation repeatability and peak shape than NH2 phase does.