Ultra Aqueous C18 Columns (USP L1), Particle Size 5 μm, Length 250 mm, ID 4.6 mm, Restek (CAT#: STEM-C-1020-LC)

The Ultra Aqueous C18 Columns (USP L1) manufactured by Restek are made of high-purity, type-B silica that minimizes activity and creates high-density bonding. These columns are ideal for selective and reliable HPLC applications.
The Ultra Aqueous C18 Columns (USP L1) is a rugged, reversed-phase column with a well-balanced retention profile. It can effectively retain more types of solutes than a conventional C18 and is an ideal choice for multicomponent LC-MS analyses. The Ultra Aqueous C18 Column boasts high reproducibility and compatibility with many mobile phase conditions-even 100% aqueous. And when used with a gradient, it eliminates the all-too-common issue of multiple compounds eluting near the column void time.

Particle Size: 5 μm
Length: 250 mm
ID: 4.6 mm
Stationary Phase Category: modified C18 (L1)
Ligand Type: proprietary polar modified and functionally bonded C18
Pore Size: 100 Å
Carbon Load: 15%
End-Cap: no
Surface Area: 300 m²/g
pH Range: 2.5 to 8
Maximum Temperature: 80°C

Ultra PFP Propyl Columns (USP L43), Particle Size 3 μm, Length 30 mm, ID 2.1 mm, Restek (CAT#: STEM-C-1021-LC)