Testing services
Every method, stated plainly
We publish what each test measures, what it does not establish, how much sample we need, and how long it takes.
HPLC-DAD Purity
Reversed-phase HPLC with diode-array detection reporting relative peak area percent across the validated reporting window of the applicable method.
- Methodology
- Reversed-phase HPLC-DAD, gradient elution, area-percent reporting.
- Sample requirements
- One sealed vial, minimum 2 mg net peptide content. Original manufacturer labelling preferred.
- Reporting
- Purity (area %)Peak tableChromatogramDigital COA
Quantity / Assay
Quantitative determination of peptide content per vial by HPLC-DAD against an appropriate reference standard and calibration curve, where the method and calibration support the analyte.
- Methodology
- HPLC-DAD external standard calibration.
- Sample requirements
- One sealed, unopened vial with declared nominal content.
- Reporting
- Amount per vialPercent of label claimChromatogramDigital COA
GLP-1 / Specialty Peptide Testing
Analyte-specific methods for GLP-1 receptor agonists, complex analogues, blends and other peptides requiring dedicated chromatographic conditions. Pricing is analyte-specific.
- Methodology
- Analyte-specific reversed-phase HPLC-DAD conditions.
- Sample requirements
- One sealed vial. Contact the laboratory for blends and multi-component products.
- Reporting
- Purity (area %)Amount per vialRetention-time comparisonChromatogramDigital COA
Additional Vial, Same Lot
An additional vial from the same lot processed alongside the primary sample where the approved method and workflow allow it.
- Methodology
- As per the primary analysis method.
- Sample requirements
- Additional sealed vial from the identical lot.
- Reporting
- Purity (area %)Chromatogram
On the roadmap
Services in development
Listed for transparency. These are not orderable yet and are never implied on a certificate.
Endotoxin Testing
Bacterial endotoxin testing.
LC/MS Confirmation
Mass-spectrometric confirmation.
Residual Solvents
Residual solvent screening.
Heavy Metals
Elemental impurity screening.
Not sure which test you need?
Tell us about the compound and matrix and we will recommend a method — or tell you if we cannot help.