HALO 400 A Diphenyl, 3.4 µm, 2.1 x 250mm

HALO 90 Å PFP, 2.7 µm, 4.6 x 75mm

HALO 90 Å ES-CN, 5 µm, 4.6 x 5mm, Guard Column 3p

HALO 90 Å PFP, 2 µm, 2.1 x 30mm