HALO 400 Å ES-C18, 3.4 µm, 4.6 x 250mm

HALO 1000 Å ES-C18, 2.7 µm, 0.3 x 50mm

HALO 400 Å C4, 3.4 µm, 0.3 x 100mm

HALO 90 Å PAH, 2.7 µm, 2.1 x 5mm, Guard Column 3p