Welch Materials HPLC Column Ultisil, MM NH2/CN, 120 Å, 5 μm, 4.6 x 250 mm

Ultisil Mixed mode phase, whose selectivity is totally different from conventional reversed phase, is a new packing material that is the development trend of liquid chromatography. There are three modes in the mixed mode phase: reversed phase/anion exchange, reversed phase/cation exchange, reversed phase/amphoteric compound.