Choosing your vial insert:
- Solvent compatibility – glass is most commonly used for vial inserts but polypropylene or polyethylene may be necessary when using pH sensitive samples.
- Targeted Residual Volume – Mandrel point vial inserts provide the smallest residual volume so are suitable when minimizing sample loss is important. Conical bottom inserts provide sufficient sample extraction for most applications.
- Price – Flat bottom vial inserts are the cheapest and may be a viable option for limited sampling. Mandrel point vial inserts are the most expensive but they minimize sample loss and provide excellent injection accuracy.