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COSMOSIL C18-AR-II HPLC Columns

COSMOSIL 5C18-AR-II is a polymeric type of C18 phase. It shows exceptional stability and long lifetime at low pH. This phase is recommended for the separations requiring acidic mobile phase conditions. It also shows superior molecular shape selectivity to monomeric type C18 columns.

COSMOSIL 5C18-AR-II
USP codeL1
Silica gelHigh purity porous spherical silica
Average particle size3 µm, 5 µm, 15 µm
Average pore sizeapprox. 120Å
Specific surface areaapprox. 300m2/g
Stationary phaseOctadecyl group
Bonding typePolymeric type
End capping treatmentNear-perfect treatment
Carbon contentapprox. 17%
pH range1.5 - 7.5
 

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COSMOSIL 5C18-AR-II 5 μm HPLC Columns
COSMOSIL 15C18-AR-II 15 µm HPLC Columns
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