Find the lot number on all three pages
NovoPro Bioscience issued a certificate of analysis for GV1001 peptide on May 18, 2026. Open the PDF to page 1 and find two numbers near the top. The catalog number, 319567, identifies the product. The lot number, MTFB20841-260514, identifies the batch covered by this certificate.
Look for that entire lot number above the chromatogram on page 2 and below the mass spectrum on page 3. Both pages also carry order ID MTFB20841. Those repeated identifiers let you trace the two measurements back to the batch named on the first page.
Recalculate the purity from peak 3
On page 1, the HPLC purity specification is greater than 95%. The result is 97.790%. To see where that number comes from, turn to the chromatogram on page 2. Time in minutes runs across the bottom. The vertical axis shows the detector signal in millivolts, measured at a wavelength of 214 nm.
Find the tall peak at 12.794 minutes and follow it to row 3 of the peak table. Divide its area, 4,561,608, by the total area of the five listed peaks, 4,664,680, and multiply by 100. Rounded to three decimal places, that gives the certificate’s 97.790%. The trace also moves sharply near 3 minutes. The first entry in the peak table is at 8.493 minutes, so that earlier feature falls outside this calculation.
Read the mass spectrum on its own scale
The mass spectrum on page 3 was recorded on May 15. Its horizontal axis is mass divided by charge, written m/z. The lab labels the signal at 623.85 as the peptide carrying three positive charges. That explains why its position on the graph is much lower than the molecular mass listed below.
Under the graph, NovoPro reports a theoretical mass of 1,868.33 daltons and an observed mass of 1,868.55 daltons. The difference is 0.22 daltons. This comparison is the basis for reading the certificate’s mass result, “Conforms.” The spectrum shows intact ions. Confirming the order of every amino acid would require additional evidence.
Check what the 5.0 mg quantity means
Back on page 1, the quantity row lists 40 units of 5.0 mg each. The peptide-content row says “N/A.” Applying 97.790% to 5.0 mg would treat a share of detector signal as a share of powder weight. A separate quantitative assay would be needed to establish the amount of peptide per vial.
Frequently asked questions
Can I reprocess the instrument data from this PDF?
The PDF contains the lab’s plotted traces and peak table. You can check the published arithmetic from those pages. To change which peaks count or where their areas begin and end, you would need the original instrument data files.