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

HALO 90 Å ES-CN, 2.7 µm, 4.6 x 5mm, Guard Column

Poroshell 120,EC-C18, 4.6x100mm,2.7um

HALO 90 Å ES-CN, 2.7 µm, 2.1 x 50mm