Agilent, 5188-5398, Liner, Helix double taper, deactivated

The Helix double-taper GC inlet liner is a deactivated glass insert for compatible Agilent split/splitless injection systems. Its double-taper geometry influences vapor movement inside the inlet, while the treated surface limits unwanted interactions between injected analytes and exposed glass. The liner has a 4 mm internal diameter, 6.5 mm outside diameter and 78.5 mm length, with an internal volume of approximately 740 µL. This configuration contains no glass wool and uses standard deactivation. Inlet liners are critical parts of gas chromatography sample introduction because contamination, reactive sites and improper dimensions can affect peak shape, response and reproducibility. Select an injection technique and temperature program appropriate for the analytes, solvent load and liner capacity. Install the liner with the correct sealing components and avoid touching its internal surface. Replace it when deposits, discrimination or carryover appear, and inspect associated septa and seals during service. This is a single replacement liner, not a complete GC inlet assembly.