Sample Integrity Observation #16 Insufficient number of bottles/containers/volume without flagging

Modified on: Tue, 7 May, 2019 at 2:08 PM


Purpose:  To ensure sufficient volume is available for each test requested on a sample.  In cases of limited quantity of sample, the lab may be unable to complete all analyses including corresponding QC samples.  RDLs may also be raised impacting the usability of the data when comparing against regulatory criteria.


  

Where sample recovery is poor, be sure to indicate that on the COC and provide a priority of analysis if multiple tests are required.

Process:  Completing analysis on samples with insufficient volumes can result in data integrity impacts such as the lab’s inability to run QC samples such as a lab duplicate or matrix spike and could result in raised detection limits.  When not instructed how to proceed with limited volumes on the COC, the lab confirms prior to analyzing.


Helpful Tips:

  • Confirm the # of bottles required with your Bureau Veritas Laboratories Customer Experience Team
  • When dealing with low recoveries, check with the lab to determine absolute minimum volumes required
  • Indicate on the COC when samples had low recoveries and the priority of analyses



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