Quality Control & Analysis Guide
At Amino Peptides Ltd, we prioritise clarity as much as quality. Below is our guide on how we verify our products for laboratory research.
How to Read Your Certificate Of Analysis (COA)
Every peptide we dispatch has undergone batch testing and is accompanied by a Certificate of Analysis (COA). This document ensures the material you receive meets the exact specifications required for high-precision research.
Here are the three key metrics we verify for every batch:
| Metric | What it Means | Our Standard |
|---|---|---|
| Mass Spec (MS) | Confirms molecular weight and ensures the identity of the sequence is correct. | Verified Identity |
| HPLC Purity | Measures the percentage of the target peptide vs. any residual impurities. | Minimum >98% |
| Appearance | Confirms the physical state of the lyophilised (freeze-dried) powder. | Clean Lyophilised Powder |
Researcher Note: We recommend keeping COAs on file for laboratory records to ensure reproducibility in your experiments.
Understanding the HPLC Chromatogram
High-Performance Liquid Chromatography (HPLC) is the industry standard for determining purity. On your COA, the chromatogram shows a "peak." A single, sharp, tall peak indicates a pure compound.
The Importance of Mass Spectrometry (MS)
While HPLC tells us how pure a peptide is, Mass Spectrometry tells us what it is. We confirm the peptide's unique molecular fingerprint matches the intended sequence.
Why "Purity >98%" is the Gold Standard
In research, trace contaminants can skew data. A purity level of >98% ensures the biological activity observed is a direct result of the peptide itself.
Storage and Reconstitution
- Allow vials to reach room temp before opening.
- Use Bacteriostatic water for multi-use research.
For more, visit our Reconstitution Guide.