Supplier documentation
Third-party testing documentation, where suppliers provide it.
Bacteriostatic Water GHK Wholesale does not carry out analytical testing and does not hold laboratory accreditation. Where the laboratories we source from provide third-party analytical documentation for a lot, we make it available unaltered. Scope and methods vary by supplier and by batch.
The Panel
Methods you may see on a supplier's report.
These are the analytical methods commonly used for research peptides. Which of them appear for any given lot is determined by the source laboratory, and the supplier's own document states what was actually tested. The descriptions below are general explanations of each method, not a claim that every method is run on every batch.
Purity
Reverse-phase HPLC separates the target compound from impurities and process residuals to give a purity figure.
Content Verification
Acid hydrolysis followed by amino acid quantification is used to check mass and concentration against the stated content.
Identity Confirmation
Mass spectrometry compares measured molecular weight against the theoretical value for the sequence.
Heavy Metals Screening
Inductively coupled plasma mass spectrometry screens for elemental contaminants such as lead, arsenic, cadmium and mercury.
Sterility Testing
Membrane filtration into growth media, incubated and inspected. Applied to some presentations only.
Endotoxin Testing
Limulus amebocyte lysate assay quantifies bacterial endotoxin, relevant to cell-culture compatibility.
Fentanyl Screen
Targeted screen for fentanyl and fentanyl analogues. Carried out by some laboratories as a contamination check.
What we do
We review the documentation a supplier provides before listing a lot, record the lot reference, and publish the supplier's document unaltered where we hold one.
Traceability
How a lot reaches you.
We source finished, filled material from established laboratories rather than manufacturing it ourselves. Each lot reference we receive is recorded so material can be traced back to the supplier batch it came from.
Supplier selection
Sourced from a small group of established laboratories
Documentation review
Supplier paperwork reviewed before a lot is listed
Lot reference recorded
Batch reference retained against the listing
Third-party report
Published unaltered where the supplier provides one
Storage & dispatch
Packed for transport appropriate to the material
Reference available
Lot reference searchable on the batch references page