186000112 SymmetryShield RP18, filled with octadecyl silica gel, 250 × 4,6 mm, 5 um
These reversed-phase columns contain Waters innovative 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.
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 5 µm
Endfitting Type Waters
Pore Size 100 Å
Format Column
Surface Area 335
System HPLC
USP Classification L1
Inner Diameter 4.6 mm
Length 250 mm
Carbon Load 17 %
UNSPSC 41115709
Brand Symmetry
Product Type Columns
Units per Package 1 pk
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