Waters, 186000173, Symmetry Shield RP18 Column, 100Å, 3.5 µm, 2.1 mm X 100 mm, 1/pk

These reversed-phase columns contain Waters patented embedded polar group technology that “shields” the silica’ residual silanol surface from highly basic analytes. The reduced silanol activity for the SymmetryShield RP18 column significantly improves peak shape and resolution.

Specifications
Chemistry: C18
Separation Mode: Reversed Phase
Particle Substrate: Silica
pH Range Min: 2 pH
pH Range Max: 8 pH
Maximum Pressure: 6000 psi (415 Bar)
Endcapped: Yes
Bonding Technology: Shield RP18
Silanol Activity: Low
Particle Shape: Spherical
Particle Size: 3.5 µm
Endfitting Type: Waters
Pore Size: 100 Å
Format: Column
Surface Area: 335
System: HPLC
USP Classification: L1
Inner Diameter: 2.1 mm
Length: 100 mm
Carbon Load: 17 %
UNSPSC: 41115709
Brand: Symmetry
Product Type: Columns
Units per Package: 1 pk

Additional Information
Symmetry Shield RP18 Column, 100Å, 3.5 µm, 2.1 mm X 100 mm, 1/pk The SymmetryShield RP18 Column is based on Waters' proprietary integrated polar group technology, which effectively protects silica's leftover surface silanols from extremely basic analytes. Surface silanol activity is further reduced due to the unique column characteristics and the proximity of the embedded polar group to the silica surface, resulting in better peak shape and resolution. Waters' patented embedded polar group technology "shields" the silica residual silanol surface from highly basic analytes in these reversed-phase columns. The reduced silanol activity of the SymmetryShield RP18 column improves peak shape and resolution significantly. The SymmetryShield RP18 Column is designed for very aqueous mobile phases, particularly when low organic mobile phase conditions are required. The SymmetryShield RP18 Column is designed to prevent pore dewetting because the implanted polar group preserves the wetted-pore surface. The design of the equipment ensures that your analyte is retained, removing the need for a time-consuming re-wetting and column re-equilibration procedure. This laboratory equipment is designed to provide the smallest ligand surface coverage (ligand density) in the industry, resulting in exceptional reproducibility. The high operational capacity and negligible resolution shifts improve batch-to-batch and column-to-column repeatability. The Symmetry Shield RP18 Column is also designed to last a long time and save you money on lab equipment by providing optimal performance. It combines two major factors that influence the column's lifetime: the hydrolytic stability of the packing material and the mechanical stability of the packed bed. To learn more about additional Waters product offerings similar to and compatible with the Symmetry Shield RP18 Column listed here, please browse our website or brochure to shop for lab equipment to replenish your stock and add to your existing equipment portfolio. Our website also enables you to be in touch with our support team, who can assist you with any queries or concerns. You should also review Symmetry Shield RP18 VanGuard Cartridge, 100Å, 3.5 µm, 2.1 mm X 5 mm, 3/pk ; SymmetryShield RP18 VanGuard Cartridges are used to extend the lifetime and performance of analytical columns by removing particulate contamination from the mobile phase stream. This cartridge has been designed to protect all 2.1 mm and 3.0 mm I.D. Symmetry Shield RP18 analytical columns with 3.5 µm sorbent particles.

FAQ
What Is The pH Range Recommended For Use With The Symmetry Shield Column? The Symmetry Shield RP18 Column can easily operate in the pH range of 2 to 8, but working at extreme pressures, pH, and/or temperatures will result in shorter column lifetimes.