QUESTIONS TO ASK
What does the reported value represent?
Before requesting HPLC peptide testing, agree on the result being requested. Ask for the method, the basis of the reported value and the limitations that affect interpretation.
- What result is included in the agreed scope?
- What units or reporting basis will be used?
- Will a chromatogram be included or available?
- What additional tests would require a separate request?
KEEP THE DOCUMENTATION TOGETHER
A number needs its method.
Review the test description, sample reference and supporting output together. Do not treat an unreported identity, amount or other characteristic as established by a different test.
Discuss HPLC testing for your sample.
Tell the laboratory the material and the result you need. Method availability must be confirmed.