HPLC and mass spectrometry are frequently listed together, but they support different parts of an analytical review. Understanding that distinction helps buyers ask for the right evidence.
What HPLC contributes
High-performance liquid chromatography separates components under a defined method. The chromatogram can support a reported purity profile when the method, integration, sample reference, and result belong to the same batch.
What mass spectrometry contributes
Mass spectrometry provides molecular-mass information that can support identity. It does not replace a chromatographic purity assessment, and the reported spectrum should still be connected to the batch under review.
Questions to ask before acceptance
A concise technical request should identify the material, batch reference, method, target specification, and required raw or supporting records.
- Do the HPLC and MS files show the same sample or batch reference?
- Is the analytical method identified?
- Does the reported result meet the agreed specification?
- Is independent testing required for the project?
Specifications, documentation, facility roles, logistics, and destination requirements should be confirmed for the exact material and order under discussion.