HPLC Columns and Cartridges
Waters Corp Spherisorb C8 Guard Cartridge, 80Å, 5 µm, 4.6 mm X 30 mm, 3/pk
Spherisorb C8 columns are general purpose, silica-based reversed-phase columns that contain an Octyl ligand. These USP L7 columns are used when you require a less retentive sorbent compared to the Spheriorb ODS columns.
Waters Corp Spherisorb Amino (NH2) Guard Cartridge, 80Å, 5 µm, 4.6 mm X 30 mm, 3/pk
Spherisorb NH2 (Amino) columns contain a silica-based aminopropyl bonded sorbent. The column is listed as USP L8 and is used for anion-exchange, normal-phase and HILIC separations.
Waters Corp µBondapak Amino (NH2) Sentry Guard Cartridge, 125Å, 10 µm, 3.9 mm X 20 mm, 2/pk
If your method calls for µBondapak packings, there is only one µBondapak packing material. Many companies claim to have columns with µBondapak-like selectivity but not one has ever passed Waters stringent QC batch test. Waters set the standard for reproducible, high-performance chromatographic columns. Waters µBondapak columns are still the most widely referenced and requested columns in the world.