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- Ensure the analyst followed SOPs, and verify the method’s validation for reproducibility.
- Review environmental monitoring records (temperature, humidity, air quality) to rule out
contamination.
- Confirm that equipment and materials were sterilized to prevent cross-contamination.
- Verify the analyst’s training and observe their technique if needed for any procedural
- errors.
- Check that samples were handled and stored properly, and that the media used was
validated.
- Review calibration and maintenance records for all equipment used in testing.
- Perform a retest or parallel study with control samples to confirm the results’ accuracy.
