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Pinnacle® DB Columns - 1.9µm, 3µm or 5μm particle sizes with 140Å pore size.
Highly base-deactivated spherical silica manufactured by Restek.Monomeric C8 bonding.
Similar to Pinnacle® DB C18, but the shorter alkyl chain provides less hydrophobic retention.
Less retention can be useful for reducing analysis time, if resolution is adequate.