Due to the relatively large diameter of PAL SPME Arrows, you must modify the GC inlet using an instrument-specific conversion kit prior to use. Converted inlets are compatible with all standard injection techniques (SPME Arrow, liquid syringe, headspace, etc.); so there is no need to switch inlets after installation.
PAL SPME Arrow GC-Specific Conversion Kits are easy to install. If there isn't an instruction sheet in the documents section below, please consult your manufacturer's instrument instructions.