Waters, 186008331, CORTECS Phenyl Column, 90Å, 2.7 µm, 3 mm X 100 mm, 1/pk

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Waters CORTECS Phenyl columns add aromatic selectivity to reversed-phase LC assays through a phenyl-hexyl bonded stationary phase. The 3.0 × 100 mm column is packed with 2.7 µm solid-core silica particles having 90 Å pores. Phenyl interactions can alter the elution order of aromatic compounds relative to conventional C18 columns, making the phase useful during selectivity screening and method development. The solid-core particle design combines efficient separations with comparatively moderate backpressure for its particle size. The column is specified for pH 2–8, temperatures up to 45 °C, and pressures up to 18,000 psi (1,240 bar). Apply the limits of the complete LC system rather than the column alone. Choose organic modifier and gradient conditions to exploit the aromatic stationary phase; compare retention and resolution against a C18 method without assuming equivalent elution behavior. Maintain clean samples and compatible fittings, then monitor peak shape, baseline behavior, and pressure during routine analytical runs.