HALO 90 Å PAH, 2.7 µm, 2.1 x 150mm

HALO 160 Å ES-CN, 5 µm, 3.0 x 5mm, Guard Column 3

HALO 90 Å Phenyl-Hexyl, 2.7 µm, 4.6 x 5mm, Guard

HALO 400 A Diphenyl, 3.4 µm, 0.5 x 150mm