Welchrom Silica, 200mg/3mL, 50pcs/pk Buy Cheap Big Sale

Welchrom silica applies unbonded active silica gel normal phase adsorbent, which is weakly acidic and has a strong polarity. The retention of the target is mainly through the force of hydrogen bonding. The silanol on the surface of the silica gel can be ionized. Under moderate pH conditions, the function is similar to that of a weak cation exchange adsorbent.