Welch Materials HPLC Guard Column Cartridge Ultisil PAH, 3 μm, 120Å, 2.1 x 10 mm, 2 pc/PAK

Ultisil PAH Column is a special column recently designed by Welch for the separation of PAHs in EPA method 610. PAHs (Polycyclic Aromatic Hydrocarbon) are hydrocarbons with two or more benzene rings, and considered major pollutants. Therefore, the analysis of these potentially carcinogenic compounds in water, air, soil and food takes high priority