HALO 400 A Diphenyl, 3.4 µm, 0.5 x 50mm

HALO 90 Å ES-CN, 5 µm, 3.0 x 20mm

HALO 160 Å C30, 2.7 µm, 0.3 x 100mm

HALO 90 Å ES-CN, 2 µm, 3.0 x 5mm, Guard Column 3p