Every assay, and the question it answers
Choose analyses per sample. Most release programmes pair purity with identity and net content; contamination panels are added where the application demands them.
Purity
RP-HPLC / UV-DAD
Reverse-phase gradient separation with diode-array detection. Reports main-peak area percent and resolves related substances down to 0.05% area.
Price
$200.00
per sample
Turnaround
3-5 business days
Identity Confirmation
LC-MS (ESI-QTOF)
Monoisotopic mass confirmation against the theoretical sequence mass, with charge-state deconvolution and mass-accuracy reporting in ppm.
Price
$150.00
per sample
Turnaround
3-5 business days
Net Peptide Content
Quantitative HPLC vs. reference standard
Absolute mass of active peptide per vial, quantified against a certified reference standard. Distinguishes label claim from net peptide delivered.
Price
$125.00
per sample
Turnaround
4-6 business days
Sterility
Dedicated vialUSP <71> membrane filtration
14-day incubation across two growth media for aerobic, anaerobic and fungal recovery. Consumes a dedicated unopened vial.
Price
$150.00
per sample
Turnaround
16-18 business days
Bacterial Endotoxins
Dedicated vialUSP <85> kinetic chromogenic LAL
Quantitative endotoxin burden in EU/mg with positive product control to demonstrate absence of assay inhibition or enhancement.
Price
$175.00
per sample
Turnaround
5-7 business days
Elemental Impurities
ICP-MS, USP <232>/<233>
Class 1 and Class 2A elemental impurities - lead, arsenic, cadmium, mercury, plus catalytic residues - quantified to sub-ppb detection limits.
Price
$100.00
per sample
Turnaround
5-7 business days
Residual Solvents
GC-HS-FID, USP <467>
Static headspace screen for Class 1 and Class 2 synthesis solvents including acetonitrile, DMF, TFA-associated residues and methanol.
Price
$135.00
per sample
Turnaround
5-7 business days
Vial Conformity
Billed per vialDimensional & closure inspection
Fill volume, closure integrity, crimp seal and cake appearance assessed per vial against your specification.
Price
$50.00
per vial
Turnaround
2-3 business days
Documented Vial Photography
Included freeCalibrated macro imaging
High-resolution as-received imaging of the vial, label and lyophilised cake, appended to the Certificate of Analysis at no charge.
Price
Free
per sample
Turnaround
Included
Instrumentation
The platforms behind each result
RP-HPLC
Purity & related substances
Gradient reverse-phase separation with diode-array detection. Resolves related substances to 0.05% area and reports main-peak purity against a validated method.
LC-MS
Identity confirmation
Electrospray QTOF mass spectrometry confirms monoisotopic mass against the theoretical sequence, with charge-state deconvolution and ppm accuracy reporting.
ICP-MS
Elemental impurities
USP <232>/<233> elemental impurity panel covering Class 1 and Class 2A elements plus catalytic residues, quantified to sub-ppb detection limits.
Sterility Testing
USP <71>
Membrane filtration with a 14-day incubation across two growth media, covering aerobic, anaerobic and fungal recovery under validated aseptic technique.
Endotoxin
USP <85> kinetic chromogenic
Quantitative bacterial endotoxin determination in EU/mg, with positive product control demonstrating absence of assay inhibition or enhancement.
Heavy Metals
Lead, arsenic, cadmium, mercury
Targeted quantification of the four heavy metals of greatest toxicological concern, with microwave digestion and matrix-matched calibration.
Residual Solvents
USP <467>, GC-HS-FID
Static headspace gas chromatography screening for Class 1 and Class 2 synthesis solvents, including acetonitrile, DMF, methanol and TFA-associated residues.
Net Content
Quantitative peptide assay
Absolute active peptide mass per vial against a certified reference standard - the difference between what the label claims and what the vial delivers.
Detection limits and working ranges are method- and matrix-specific. The figures above describe typical performance under our validated conditions; your reported limits appear on your certificate.
Planning your shipment
How many vials to send
Chromatographic and spectrometric assays can share material from a single vial. Sterility and bacterial endotoxin testing cannot - each consumes a dedicated, unopened vial, because the question they answer is destroyed by the first entry.
The submission form performs this arithmetic as you select assays and states your total vial count before you confirm. Sending too few vials is the most common cause of delay on an otherwise complete order.
Read the full explanationWorked example
- Purity + Identity + Net Content1 vial
- + Bacterial Endotoxins+1 vial
- + Sterility+1 vial
- Total to ship3 vials
Vial conformity inspection is billed per vial and applies to every vial you send, including the dedicated ones.