HALO 160 Å ES-C18, 2.7 µm, 4.6 x 100mm

HALO 90 Å ES-CN, 5 µm, 2.1 x 100mm

HALO 1000 Å C4, 2.7 µm, 3.0 x 100mm

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