OBJECTIVE or GOAL
Troubleshoot carryover based on its location.
- Alliance HPLC system
- 2695 Separations Module
- 2695D Dissolution Separations Module
- ACQUITY UPLC I-Class
- Carryover found in the needle: Extend wash time
- Carryover found in the needle seal: Extend wash time/replace the needle seal
- Carryover resulted from cloth: Replace the cloth
- Carryover resulted from inappropriate needle wash: Adjust to appropriate needle wash
- Carryover resulted from obstructed needle wash: Repair
- Extend gradient wash time
- Rebuild the Seal Pack
The new e2695 has improved carryover performance. You can update to the new Seal Pack if possible/necessary.