UNKNOWN PEAK INVESTIGATION

Identify an Unknown Peptide Impurity

Unexpected HPLC or LC-MS peak? PeptiQore connects analytical investigation, candidate impurity identification, custom synthesis and reference material development.

Submit an Unknown Peak

Submit Your Peak Data

Provide chromatogram, LC-MS data, parent peptide and any available method information.

Candidate Identification

PeptiQore applies sequence analysis, mass shift interpretation and degradation pathway intelligence to generate candidate identities.

Experimental Verification

Where required, candidate impurities are synthesized and co-injected to confirm chromatographic identity.

Reference Material Development

Confirmed impurities can be developed into characterized reference materials for ongoing analytical use.

SUBMIT INVESTIGATION

Submit an Unknown Peak

Parent Peptide *

Investigation Goal *

Observed Mass (Da) — optional

Retention Time — optional

Description of the unknown peak *

Supporting Data

Accepted file types: PDF, CSV, TXT, XLSX, PNG, JPG. Maximum 10 MB per file. Do not upload confidential sequence data unless you have reviewed our Confidentiality Policy.

File upload is available after initial submission. PeptiQore will contact you to arrange secure transfer.

Company / Organisation

Business Email *

Submissions are treated as confidential. PeptiQore does not index or publish customer-submitted analytical data. See our Confidentiality Policy for details.

RELATED RESOURCES

Semaglutide Impurities Tirzepatide Impurities Liraglutide Impurities Mass Shift Explorer