Analytical method · Comparison basis
Reference Standards
Characterised materials used as a basis for comparison in analytical testing.
What is it?
A reference standard is a well-characterised material against which a sample's response, retention, or mass can be compared to support interpretation.
What does it measure?
Nothing directly — it provides the comparison basis that makes other measurements interpretable.
What type of result does it produce?
Not a result itself; it underpins the validity of comparative results.
What can the result support?
- Comparison of retention, mass, or response
- More trustworthy identity and purity interpretation
What can it not establish?
- Valid results if the reference is unsuitable, unstated, or mischaracterised
What variables affect the result?
- Suitability and characterisation of the reference
- Storage and stability
- Whether the reference is identified in the report
Example output
A report that names the reference material used to compare retention time and mass.
Common interpretation mistake
Accepting comparative claims when no reference material is identified.