AQ C18 series using a polar chemical group to modify the spherical C18 surface and enhance the retention for polar substance. The bonded chemical group also make RP surface more hydrophilic, and provide good recovery for both polar and non-polar compounds, especially for water samples.
Based on Spherical Silica; C%: 18-19%;
Average Particle Diameter: 50 μm;
Average Pore Size: 60 Å;
Specific Surface Area: 600 m2/g.