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Lot Traceability in the Laboratory: Record-Keeping for Reproducible Peptide Research

Reproducibility starts with a notebook. A practical template for tracking peptide reagents from delivery to data.

5 min read
Labelled research peptide vials with lot numbers and certificates of analysis for traceability

When a result cannot be repeated, the first question is usually about the reagent. Good lot traceability answers it in minutes instead of weeks.

What to record on arrival

  • Supplier, product name and catalogue number
  • Lot number and CoA reference
  • Date received and condition of packaging
  • Storage location

What to record on use

  1. Reconstitution date, diluent and volume
  2. Calculated concentration
  3. Aliquot labels and freezer position
  4. Experiments that used each aliquot

Digital vs paper

Electronic lab notebooks and inventory systems make searching easy, but even a simple shared spreadsheet beats memory. Link each dataset to the reagent lot.

See also: sourcing research peptides responsibly.

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