HALO 90 Å Biphenyl, 2.7 µm, 4.6 x 250mm

HALO 1000 Å C4, 2.7 µm, 4.6 x 100mm

HALO 160 Å ES-C18, 2.7 µm, 4.6 x 5mm, Guard Colum

HALO 160 Å ES-C18, 2 µm, 3.0 x 75mm