Every batch of PrimaPep peptides undergoes independent third-party HPLC analysis. Below is a representative sample of our Certificates of Analysis. Complete batch-specific COAs are included with every order.

HPLC Testing Standards

• Method: Reverse-Phase HPLC (RP-HPLC)
• Column: C18, 5µm, 4.6 × 250mm
• Detection: UV at 214nm / 220nm
• Mobile Phase: Acetonitrile/Water gradient with 0.1% TFA
• Purity Threshold: ≥98% (area normalization)

Recent Batch Results

近期批次结果

Purity Guarantee

Submit any PrimaPep product to an independent HPLC facility. If results fall below our specified purity standard (≥98%), we refund 100% of your purchase plus your testing costs. No questions asked.