Impurity identification

Profile of impurities above the reporting threshold, with mass assignment of each.

At a glance

Turnaround

3 to 5 business days from receipt.

Price

Quoted with the project.

Sample

1 vial, or powder.

Accreditation

ISO 17025 quality system, scope extension in progress

Scope

Every peak above 0.05% of total area, by area percent.
Mass-based assignment: deletion and truncated sequences, oxidation, deamidation, dimers, adducts, protecting-group residues.

Method

Reversed-phase HPLC-UV at 214 nm for the profile; LC-MS and Orbitrap HRMS for assignment.

Reported as

Impurity table: retention time, area percent, observed mass, proposed identity.
Chromatogram and spectra.

Sample

1 vial, or powder.

Accreditation

Performed under the laboratory’s ISO/IEC 17025:2017 quality system. A2LA scope extension (certificate 6377.01) in progress.

Order

Start an order online, or send the compound name and the tests you need for a quote.

All peptide testing