CRS injection port liners provide a clean, nonadsorptive surface for your sample. Regular replacement of liners protect your capillary column from potentially harmful non-volatiles that might otherwise deposit on your column.

All liners help protect the vaporized sample form contacting the metal wall of the inlet as sample flows onto the column. Deactivated glass wool may be used as an aid for sample vaporization, to minimize discrimination based on boiling point, and to provide a surface on which non0volatiles can be trapped. The simplest liner is a straight tube, which gives all-around good performance at low cost. Single-taper liners improve on a straight tube by minimizing sample vapor contact with metal at the bottom of the injection port, although they are somewhat more expensive. Liner designs ar further optimized for specific injection techniques.