Research articles and guides
Reference material for Canadian laboratories working with research peptides: analytical documentation, purity and identity methods, storage and cold chain, manufacturing quality designations, and the regulatory position in Canada.
19 articles & guides · page 1 of 1
- Storage & Handling
Shelf Life and Stability of Lyophilised Research Peptides: Room Temperature to Long-Term Storage
Sealed, dry lyophilised research peptides exhibit high stability compared to liquid preparations. In their unreconstituted solid state, sealed vials typically maintain purity for 30 to 90 days at ambient room temperature, 12 to 24 months refrigerated, and 24 to 36+ months frozen at minus 20°C.
5 min readRead guide - Documentation & Testing
How to Read a Peptide Certificate of Analysis
A certificate of analysis documents the identity, purity, and physical characteristics of a specific peptide lot. Reading each block - from mass confirmation to moisture content - lets a laboratory assess whether the material meets its quality criteria before accepting the shipment.
7 min readRead guide - Documentation & Testing
HPLC Area-Percent Purity in Research Peptides Explained
HPLC area-percent purity reports the main peak as a fraction of total chromatographic peak area. That figure is not equivalent to the mass of peptide in a vial, because water, counterions, and UV-inactive impurities are not captured by the same measurement.
8 min readRead guide - Documentation & Testing
Mass Spectrometry for Peptide Identity Confirmation
Mass spectrometry confirms peptide identity by matching the observed molecular mass of a sample against the theoretical mass calculated from the amino acid sequence. It is the primary analytical tool for identity and is distinct from purity measurement, which is the domain of chromatographic methods.
8 min readRead guide - Storage & Handling
Receiving and Storing Research Peptides in a Laboratory Setting
Sealed lyophilised research peptides require controlled temperature, low humidity, and protection from light throughout the cold chain. Institutional laboratories should have documented procedures for inspecting material on arrival, assigning storage conditions, and maintaining inventory records tied to lot numbers.
7 min readRead guide - Storage & Handling
Peptide Degradation: Oxidation, Deamidation, and Aggregation Pathways
Peptides degrade through several distinct chemical pathways - oxidation, deamidation, backbone hydrolysis, and aggregation - each driven by different environmental conditions. The sequence of a peptide determines which pathways are most relevant and how quickly they proceed under a given set of storage conditions.
8 min readRead guide - Regulation & Compliance
Canadian Regulations for Institutional Research Peptide Supply
Research peptides supplied to Canadian institutions are not authorised drugs under the Food and Drugs Act. They are unapproved materials supplied exclusively for laboratory research, subject to institutional verification requirements, import controls, and record-keeping obligations that fall on the receiving organisation.
9 min readRead guide - Fundamentals
What Are Research Peptides: A Laboratory Materials Overview
Research peptides are short amino acid chains produced by chemical synthesis and supplied to laboratories as characterised analytical materials. They are not authorised by Health Canada as drugs for human or veterinary use and are intended for laboratory research purposes only.
7 min readRead guide - Fundamentals
Peptides vs. Proteins: Structure, Synthesis, and Laboratory Handling
Peptides and proteins are both amino acid chains but differ substantially in length, structural complexity, synthesis route, and stability. These differences determine which analytical methods apply, how each class is stored, and what documentation standards are appropriate for laboratory research materials.
7 min readRead guide - Purchasing
Evaluating a Canadian Research Materials Supplier: A Practical Checklist
Evaluating a supplier of research materials requires examining per-lot documentation, analytical method transparency, independent testing practices, and institutional verification protocols. Domestic fulfilment and demonstrable cold-chain capability are additional considerations for Canadian laboratories.
7 min readRead guide - Documentation & Testing
Lot Traceability and Batch Records for Research Materials
Lot traceability links each container of research material to its synthesis batch, analytical results, and storage history. It supports experimental reproducibility, audit readiness, and the documentation standards expected by peer-reviewed journals.
7 min readRead guide - Documentation & Testing
Third-Party Versus In-House Testing of Research Materials
In-house testing by the manufacturer and independent third-party analysis serve different purposes in the quality documentation of research materials. Understanding the difference - and how to verify that a third-party report is genuinely independent - is essential for informed supplier selection.
7 min readRead guide - Purchasing
Institutional Purchasing and Purchase Orders for Laboratory Materials
Canadian institutional laboratories acquire research materials through formal workflows that include quotations, purchase orders, grant or cost-centre coding, approval chains, and receipt reconciliation. Consumer checkout patterns are structurally incompatible with these requirements.
7 min readRead guide - Fundamentals
Reading the Evidence Base Behind Research Peptide Compounds
Research compounds occupy different rungs of the evidence hierarchy. Understanding what in vitro data, animal models, and each clinical trial phase do and do not establish prevents the common error of describing preclinical findings as though they were clinical conclusions.
7 min readRead guide - Documentation & Testing
Peptide Blends: Analytical Challenges and Documentation Standards
A vial containing two or more peptides is analytically more complex than a single-compound preparation. Characterising a blend requires per-component identity and purity data, confirmed ratio, and an understanding of how chromatographic resolution changes when peaks from multiple sequences may overlap.
7 min readRead guide - Documentation & Testing
TFA and Acetate Counterions on the Peptide Certificate of Analysis
Synthetic peptides arrive as salts because their basic groups require a counterion for charge balance after purification. TFA is the most common counterion from standard reverse-phase HPLC purification and can interfere with sensitive cell-based assays. Acetate exchange replaces it. Net peptide content and gross vial weight differ as a result.
7 min readRead guide - Regulation & Compliance
GMP and ISO 9001 in Peptide Manufacture: What Each Designation Means
ISO 9001 certifies a manufacturer's quality management process, not the quality of any individual lot. GMP manufacture is a specification-level standard applied to drug manufacturing. Neither designation substitutes for lot-specific analytical data, which remains the operative evidence when qualifying a peptide supplier.
8 min readRead guide - Storage & Handling
Cold Chain Shipping of Lyophilised Peptides Across Canada
Lyophilised peptides tolerate transit temperature excursions more readily than solutions because water removal reduces degradation pathways. Appropriate insulated packaging, coolant selection based on transit time and season, and thorough receiving inspection protect material integrity across Canada's varied geography.
7 min readRead guide - Storage & Handling
Laboratory Handling and Institutional Safety for Research Peptides
Synthetic research peptides are laboratory chemicals subject to institutional chemical hygiene plans, WHMIS 2015 labelling, and standard laboratory waste management. Inhalation of fine lyophilised powder is the primary physical hazard during handling, addressed through ventilated weighing areas and appropriate personal protective equipment.
7 min readRead guide