HALO 160 Å ES-CN, 2.7 µm, 0.5 x 50mm

HALO 400 Å C4, 3.4 µm, 4.6 x 5mm, Guard Column 3p

HALO 90 Å RP-Amide, 2.7 µm, 2.1 x 5mm, Guard Colu

HALO 90 Å ES-CN, 2.7 µm, 3.0 x 100mm