COA & Testing | Sequence Peptides

SECTION 01 — TWO DIFFERENT QUESTIONS

Purity and identity are not interchangeable.

These are common analytical techniques in peptide characterization. Neither method establishes a result for a specific Sequence listing without its laboratory record.

A HPLC

What proportion is the target?

High-performance liquid chromatography separates components in a sample. A laboratory report may use the chromatogram to report a purity value for the tested batch.

Read the named method and sample
Check the lot or batch identifier
Review the original laboratory report

B MASS SPECTROMETRY

Does the mass match?

Mass spectrometry measures molecular mass. A laboratory can compare an observed mass with an expected value to help assess identity for the tested sample.

Compare observed and expected values
Check the sample identifier
Read the method and interpretation

SECTION 02 — THE CERTIFICATE

Look for the batch connection.

A useful Certificate of Analysis identifies the material tested, the lot, the methods, the results, and the issuing laboratory.

Analytical documentation · educational overview

◈ DOCUMENT CHECK

Read the record, not the badge

A catalog badge is a pointer to documentation. The laboratory document itself is the record to review.

Material and lot identification
Method and date of testing
Reported result and issuing laboratory
Connection to the supplied batch

View Lab Results →

SECTION 03 — CURRENT STATUS

Published laboratory records.

Ten Certificates of Analysis report purity by HPLC-UV and identity by LC-MS. Tested by Freedom Diagnostics LLC; reported 2026-10-27. AquaSEQ is a laboratory supply with no COA.

◈ BEFORE ORDERING

If your laboratory requires a batch-specific result, contact the research desk and request the document before relying on a purity or identity claim.