How to Handle Peptides in the Lab
Proper peptide handling in the laboratory environment is essential for maintaining compound integrity and ensuring reliable research results. This guide covers best practices from receiving to disposal.
Receiving and Inspection
Upon receiving peptides, immediately inspect for shipping damage, verify the label matches your order (compound name, quantity, lot number), and transfer to appropriate storage. Document the receipt date for inventory tracking.
Storage Protocols
Lyophilized peptides: store at -20°C in a dedicated freezer. Reconstituted peptides: store at 2-8°C (refrigerator). Keep vials in their original packaging to protect from light. Label all vials with reconstitution date, concentration, and researcher initials.
Workspace Preparation
Before handling peptides: clean your workspace with 70% isopropanol, gather all supplies (syringes, alcohol swabs, BAC water), and ensure proper lighting. Wear nitrile gloves to prevent contamination from skin oils and to protect yourself.
Reconstitution Best Practices
Allow frozen vials to reach room temperature before opening (prevents condensation inside). Use sterile technique throughout. Add bacteriostatic water slowly along the vial wall. Never touch the rubber stopper with ungloved hands. See our detailed reconstitution guide.
Avoiding Cross-Contamination
Use a fresh syringe for each vial. Never use the same syringe to draw from multiple peptide vials. Clean your workspace between handling different compounds. Store different peptides separately and clearly labeled.
Documentation
Maintain a lab notebook recording: date and time of reconstitution, lot number, BAC water volume added, calculated concentration, storage location, and any observations (dissolution time, appearance). This documentation is essential for reproducible research.
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