How to read an analytical report.
This guide explains what common purity and identity methods can show. It is educational, not proof that any listed SuperBio lot has passed a particular test.
What the trace shows
A reversed-phase HPLC run pushes the sample through a C18 column. Compounds leave the column at different times depending on how strongly they stick to it, and a detector at 214 nm records what comes out.
The large example peak represents the target compound; smaller peaks can represent other components. Purity is commonly reported as the main-peak area divided by the total integrated area. The actual method and interpretation must be checked in the original lot report.
- 214 nm, not 280 nm
- 214 nm detects the peptide bond itself, so it sees every fragment. 280 nm only sees aromatic residues and will flatter a sample that lacks them.
- Area, not height
- A tall narrow peak and a short broad one can carry the same mass. Area is the honest measure; height is the flattering one.
- Purity is not identity
- A 99% pure sample of the wrong molecule is still the wrong molecule. That is what the mass-spectrometry gate is for.
Example trace
Illustrative chromatogram only; not a SuperBio assay or released-lot result.
Illustrative chromatogram, not a raw laboratory trace. Request the original lot report before relying on analytical results.
Four questions to ask before trusting a lot report.
- 01
Synthesis and purification
Check the compound identity, lot identifier, manufacturing or sampling information and the scope of the original report.
A document for another lot or supplier cannot establish the identity of the material offered here.
- 02
Identity by mass spectrometry
Where mass spectrometry is claimed, compare the measured ion and expected molecular mass in the original data.
A purity chromatogram alone does not establish that the material is the intended molecule.
- 03
Purity by analytical HPLC
Where HPLC purity is claimed, confirm the method, detection wavelength, integration and the laboratory named in the original report.
Do not rely on a headline percentage or an illustrative chromatogram as a measured lot result.
- 04
Publication against the lot number
The report's lot number should match the product label and the material actually offered for sale.
If a lot-matched original report is unavailable, ask us before ordering; no replacement report should be inferred.
What these methods do not establish.
Even a genuine identity or purity report has a defined scope. Read the methods and exclusions before relying on it.
Not a sterility certificate
HPLC and mass spectrometry do not by themselves establish sterility, endotoxin status or bioburden. Do not assume the material is sterile.
Not a biological activity assay
HPLC and MS describe what the molecule is, not what it does in a living system. We make no claims about biological effect.
Not a medicine
Nothing here is licensed, approved or intended for human or veterinary use. No result on this site should be read as evidence of safety in a living organism.