Reading a Peptide HPLC Trace — A 5-Minute Field Guide for Bench Scientists. Read our briefing →
Reading a peptide HPLC trace — a field guide. Read →
On reading HPLC traces. Read →
For Academic Laboratories
A standard qualified for a method-development or in-vivo workflow gets cited in the methods section, referenced in the next grant, and re-ordered across the life of the project. Lyochem supplies sequence-verified, lot-traceable material with the per-lot analytical packet that survives peer review — plus academic pricing and the documentation depth IACUC and journal reviewers expect.
The situation
An academic purchase is rarely a one-off. A standard qualified once gets cited, re-grant-referenced, and re-ordered for years — so the question is never just “is it pure,” it is “can I defend this identity and this lot two years from now when a reviewer asks.”
That puts the analytical packet, not the price, at the centre of the decision. Lyochem releases every lot with the chromatogram, mass spectrum, and (on longer sequences) tandem-MS sequence confirmation that lets a lab reference the exact material it used — and holds the catalogue identity stable so re-orders map to the same SOP.
Regions served: Global · concentrated in USA · EU · UK · Japan · Australia
How procurement runs
Tell us the sequence or catalogue molecule, the scale you actually consume, and whether the work is in-vitro or in-vivo. For in-vivo we flag the endotoxin and microbial-limits add-ons up front.
Request the sample data packet — a representative COA, RP-HPLC trace, and ESI-MS identity sheet — so your PI and analytical core can vet the documentation depth before a PO is raised.
Each shipment carries its own lot-specific packet keyed to the vial. LC-MS/MS sequence verification is included on the longer peptide classes and available on request elsewhere.
The catalogue entry stays put, so the next order maps to the same SOP reference and the same documentation structure across the life of the project.
The release packet
The analytical packet — not the price — is what an audit, a reviewer, or a downstream SOP actually checks. Request the sample data packet to vet the depth before a PO.
Per-lot Certificate of Analysis keyed to lot number and re-test date
RP-HPLC chromatogram with peak integration
ESI-MS identity confirmation against theoretical mass
LC-MS/MS sequence verification on longer sequences (on request elsewhere)
Water content (Karl Fischer) and counter-ion identification
LAL endotoxin + USP <61>/<62> microbial limits on request for in-vivo work
Academic / non-profit pricing reviewed per project
Curated catalogue
15-mer
Body Protection Compound 15-mer
43-mer
Thymosin β4 fragment
GLP-1 receptor agonist · 31-mer metabolic research peptide
GIP / GLP-1 dual receptor agonist · 39-mer metabolic research peptide
16-mer
Mitochondrial-derived peptide
Cathelicidin antimicrobial peptide
Before a first order
Yes — academic, government-laboratory, and non-profit pricing is reviewed per project at quote stage. Because reference-standard procurement tends to be recurring rather than one-off, the pricing usually reflects your re-order cadence across the project rather than a single-PO discount. Share the molecule and your expected consumption when you request the data packet.
The standard release packet covers identity and purity (COA, RP-HPLC, ESI-MS, water content, counter-ion). For in-vivo work we add bacterial endotoxin by LAL (USP <85>) and microbial limits (USP <61>/<62>) on the specific lot on request — these are add-ons rather than defaults because cell-culture-only workflows generally do not need them. Flag the in-vivo route when you scope the order so the right tests are run on the lot you receive.
Yes — the catalogue identity is held stable specifically so re-orders map to the same SOP reference. Each lot ships with its own lot-specific packet, so you can document the exact material used at each stage while referencing one stable catalogue entry in your methods section.
Mass spectrometry confirms the molecular weight to within a fraction of a Dalton, but two different sequences can share a mass. For that reason LC-MS/MS sequence verification — which reads the residue order directly — is included on the longer peptide classes and available on request elsewhere. Our lab note “Mass spec alone is not sequence verification” walks through the distinction.
Lab notes for this workflow
Methodology
What Analytical Packet Should a Research Peptide Standard Include?
Read
Lab Note
Sequence-Confirmed Synthesis — Why Mass Spec Alone Isn't Enough
Read
Lab Note
Reading a Peptide HPLC Trace — A 5-Minute Field Guide
Read
Lab Note
Lyophilized Peptide Stability — What Actually Degrades, How Fast, and What ICH Q1A Requires
Read
Other research teams we serve
Biotech R&D Groups
Preclinical biotech and pharma discovery teams sourcing characterized peptides for receptor-pharmacology, screening, and method-development campaigns.
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Contract Research Organisations
CROs running preclinical and translational studies for sponsors who need traceable reference material reconciled across multi-site campaigns.
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Core Facilities & Instrumentation Cores
Shared instrumentation cores and mass-spec facilities holding reference standards for cross-PI method validation and reagent qualification.
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First reply under 12 hours from a synthesis chemist or analytical contact — not a templated auto-response. Lot-specific HPLC chromatogram, ESI-MS identity, MS/MS sequence (on request), KF water, and stability data returned with the quote.