Agilent, 122-6832, J&W DB-608 GC Column, 30 m, 0.25 mm, 0.25 µm, 7 inch cage

The Agilent J&W DB-608 capillary GC column provides a mid-polarity stationary phase for separations that require selectivity different from low-polarity general-purpose columns. The fused-silica column has a 30 m length, 0.25 mm internal diameter and 0.25 µm film thickness, supplied on a standard 7-inch cage. DB-608 chemistry is used for halogenated organic compounds, pesticide-related analyses and other applications where specific retention patterns are important. The nominal temperature range is 40 °C to 280/300 °C, with the higher limit applying to temperature-programmed use. Carrier-gas flow, injection technique and oven temperature programming must be optimized against the analytical method and target analyte set. A stable inlet seal, appropriate ferrules and controlled column conditioning help reduce contamination, peak tailing and excessive bleed. This is a capillary separation column, not a packed column or sample-preparation cartridge.