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.
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Chemistry
C18
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Separation Mode
Reversed Phase
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Particle Substrate
Silica
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pH Range Min
2 pH
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pH Range Max
8 pH
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Temperature Limits
45 C
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Maximum Pressure
6000 psi (415 Bar)
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Endcapped
Yes
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Bonding Technology
Shield RP18
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Silanol Activity
Low
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Particle Shape
Spherical
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Particle Size
7 µm
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Endfitting Type
Waters
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Pore Size
100 Å
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Format
Prep Column
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Surface Area
335
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System
HPLC Preparative
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Technique
LC/MS, LC
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USP Classification
L1
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Inner Diameter
19 mm
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Length
150 mm
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Carbon Load
17 %
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UNSPSC
41115709
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Brand
Symmetry
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Product Type
Preparative Columns
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Units per Package
1 pk