Spherical silica carrier for constant results on high level: LiChrospher® are reliable and versatile traditionally produced spherical silica carrier. LiChrospher® silica carrier are available with different modifications. For the LiChrospher® RP-phases a selectivity and performance guarantee makes sure that these parameters remain constant form batch to batch and from year to year. The polar modified phases LiChrospher® CN, LiChrospher® NH2 and LiChrospher® DIOL as well as LiChrospher® Si with no modification are best for normal phase HPLC. Furthermore LiChrospher® PAH is highly efficient and selective for the separation of PAH.