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When To Perform a PQ Test on your Instrument
Aside from regulatory issues, it is generally accepted that a Performance Qualification of any HPLC system should
be done:
- Every 6 to 12 Months
- After any Preventative Maintenance
- After any Upgrades
- After any repairs
- After moving any instrument
- During Method Transfer and System Troubleshooting
It is also generally accepted that a PQ should be done by technicians and not by the repair or service person since
you are ultimately validating the work they did. It is important to
demonstrate that the work was done properly and that the original design specifications are still being met. If
not, an IQ/OQ must be done first.
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