ZirChrom DB01-1046 DiamondBond-C18 eliminates the shortcomings of conventional ODS-silica columns by combining patented surface technology with ZirChrom's state-of-the-art particles. The DiamondBond particle is carbon-clad zirconia, stable at all levels of pH. Now the entire operating range is available allowing chromotographers to achieve better separations. In addition, with DiamondBond-C18's unique bonding chemistry, the C18 ligands are attached to the surface with ultra-stable carbon-carbon bonds - so the columns are impervious to extremes of mobile phase chemistry and temperature. DiamondBond -C18 opens up a whole new operating range to explore in chromatographic applications. ZirChrom's DiamondBond Columns use proprietary covalent bonding technology developed by Cabot Corporation. ZirChrom columns offer today's chromatographer the following advantages: Indestructible or resistant to a wide variety of solvents such as acids, bases, organic solvents, etc. Cleanable with strong solvents, resulting in longer column lifetime. Faster, cheaper analyses by using elevated temperature provided by column heater technology. Can be used over a wide pH range. No peak asymmetry with amines.

Could be new but we have no way of telling so we are listing it as used.