Florisil

Florisil is magnesium silicate that removes interfering substances that are not removed by other sorbents. The typical activation is carried out overnight at 130 °C and cooled in a desiccator, but it may be further heated to increase adsorption capacity or weakened by addition of water. Florisil PR (60/100 mesh) is suitable for a pesticide cleanup particularly effective for organochlorine pesticides.