Identity
$95per sample
LC–MS (ESI+). Confirms that the main component has the exact mass of the named peptide: every charge state we record within 10 ppm of the formula. A mass match cannot tell a D- from an L-amino acid; we do not sequence.
Know what’s actually in the vial.
Independent identity and purity testing for research peptides by LC–MS and HPLC. Every report we issue is published under its number, every number checkable.
What you receive
A certificate of analysis, published under its own number
- The accession number.Assigned when your sample is logged, with a check digit that catches a mistyped number.
- The sample as received.Your lot reference and the received and issued dates and times, so a buyer can match the report to the vial.
- Identity and purity, with the specification column.Each charge state within 10 ppm of what the formula predicts; purity from three injections, every peak at or above 0.05% named.
- The evidence.The chromatogram and the mass spectrum, the method parameters, and what could not be resolved, in a row of its own.
- Two signatures.The analyst and the reviewer, named, with the date each signed.
- Two hashes and a QR code.Anyone can check the report at its address without contacting us.
How it works
From order to published report in four steps.
Order online
Pick the test and the peptide. No account and no quote: we email the invoice when you submit, payable on receipt.
Ship the sealed vial
Print the intake sheet, put it in the box with the vial as sold, and send it to the address in your confirmation email.
We log it, then run it
On receipt we assign the accession number and start the 10-business-day clock. Then purity by RP-HPLC–UV and identity by LC–MS, three injections, every method parameter published.
Your report is published
Under that number, with a hash and a QR code. You get the certificate PDF by email.
Tests and pricing
Published and fixed. You will not be asked for a quote.
Order
Purity
$145per sample
RP-HPLC–UV at 214 nm, area percent, with the chromatogram.
Identity + Purity
$185per sample
Identity and purity on one sample, one report.
Tells you it is the named peptide and how clean it is. To know how many milligrams are in the vial, add Mass per vial (+$60) or take the Full panel.
Full panel
$340per sample
Identity + Purity with Mass per vial, Water content and Bacterial endotoxin.
Saves $55 against Identity + Purity with all three add-ons.
What each test includes is on the pricing page.
Mass per vial+$60
External-standard HPLC against a named reference standard. Reported as mg of free peptide per vial, with the salt and water accounted for. Adds to Identity + Purity only, because it rides on the same HPLC run and reference standard.
Order mass per vial with Identity + Purity
Water content+$55
Coulometric Karl Fischer, whole vial. Reported as mass percent. Adds to Identity, Purity or Identity + Purity; the Full panel already includes it.
Order water content with Identity + Purity
Bacterial endotoxin+$95
Kinetic chromogenic LAL. Reported in EU per mg of powder; no limit is applied unless you supply one. Adds to Identity, Purity or Identity + Purity; the Full panel already includes it.
Order bacterial endotoxin with Identity + Purity
Per sample, in CAD, for lyophilised powder only. The same price for one vial and for two hundred; there is no volume discount. What each test includes · What the methods cannot determine.
For vendors
Your buyers can check us without asking you.
- Each lot gets its own accession number and its own page. Put the QR on the listing and the buyer reaches our register, not your site. A box of many lots ships with one manifest, one line per lot.
- The same price per sample whether you send one or two hundred. No volume discount, so no reason for us to want a particular result.
- A low result is published under its number like any other, next to your lot reference.
Holding one of our certificates?
Paste its number and find out whether we wrote it. No account and no email.
Before you order
What do I get for $185?
Identity and purity on one sample, in one report: the chromatogram with retention times, three injections and their spread, the identity confirmation by mass spectrometry, every peak at or above our 0.05% area reporting threshold, anything the method could not resolve, and a PDF certificate with a number anyone can verify. Until the limit of quantitation for your analyte has been measured, and the scope table says whether it has, a smaller peak may be present and not seen.
Do I need an account or a quote?
No. Prices are published and the same for everyone. You submit your testing request, we email the invoice straight away, and you ship.
How much do I send?
The minimum per test: Identity (ID): one sealed vial as sold; Purity (PUR) or both (IDP): one sealed vial as sold; Mass per vial (QNT): three sealed vials as sold; Water content (H2O): two sealed vials as sold; Bacterial endotoxin (LAL): one sealed vial as sold; Full panel (FULL): five sealed vials of the same lot, as sold: three are dissolved whole, by mass, to 2.0 mg/mL nominal in LAL reagent water (10 mM Tris of LAL grade for semaglutide, tirzepatide and retatrutide), for content per vial; purity, identity and endotoxin are taken from those solutions. Two more are used whole for water content.. Send the sealed container exactly as you received it.
When do I pay?
When you receive the invoice, which we email as soon as you submit your testing request; it is payable on receipt. Payment details come with the invoice, which we email when you submit your request. If we miss the turnaround the payment is refunded, and you still get the results.
How long does it take?
10 business days from the Received time printed on your report, which is set when we log the sample. The clock pauses only while we wait for your answer to a written question about it. Miss the date and the invoice is cancelled, or your payment refunded, and you still get the results.
Will my name be on the report?
No. No sender’s name, company or contact is recorded in the register or printed on any report. The lot reference you give us is printed, so a buyer can match the report to the vial.
Is every result published?
Yes. Every report is published at its own address under its number, whatever it says, and we will not delete it: the register refuses a deletion and shows one at its next integrity check. Your name is not on it; your lot reference is.
What happens if the identity does not match, the vial arrives opened, or your peptide is not on the list: answered on the sending page.
Results in 10 business days, or they’re free.
Business days exclude weekends and Ontario public holidays.