Testing lab
Janoshik Analytical
The most widely used independent peptide testing laboratory in the research community. Based in Prague, Czech Republic, Janoshik provides comprehensive peptide analysis including HPLC purity, mass spectrometry identity verification, endotoxin testing, heavy metals, and sterility. Known for QR-coded COAs with online verification via public.janoshik.com.
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About Janoshik Analytical
The most widely used independent peptide testing laboratory in the research community. Based in Prague, Czech Republic, Janoshik provides comprehensive peptide analysis including HPLC purity, mass spectrometry identity verification, endotoxin testing, heavy metals, and sterility. Known for QR-coded COAs with online verification via public.janoshik.com.
Written for the operator's previous directory and reproduced unchanged (markup and emoji stripped). Ported observed .
What it tests
- HPLC Purity
- High-performance liquid chromatography purity analysis for peptide samples.
- LC-MS/MS Identity
- Liquid chromatography-tandem mass spectrometry for peptide identity verification.
- Endotoxin (LAL)
- Limulus amebocyte lysate endotoxin testing for injectable peptide samples.
- Heavy Metals (ICP-MS)
- Inductively coupled plasma mass spectrometry for heavy metal contamination analysis.
- Sterility (TAMC+TYMC)
- Total aerobic microbial count and total yeast/mold count sterility testing.
- Residual Solvents (GC-MS)
- Gas chromatography-mass spectrometry for residual solvent detection.
Accepted sample types
- Lyophilized peptide
- Raw powder
- Liquid solution
Turnaround
- Standard
- 1-8 days observed
- Rush
- Not on file
Pricing
~$828 for GLP-1 full panel observed
Prices change; this is what we observed on the date shown, not a quote. The lab's own price list is authoritative.
Accreditation
No accreditation on file. That is a finding, not a blank — an unaccredited lab's numbers rest on its own say-so, which is exactly the situation third-party testing exists to avoid.
Strengths and weaknesses
Where it does well
- Gold standard for community peptide testing
- QR-verified COAs
- Comprehensive test menu
- Accepts worldwide samples
- Public test database
Where it falls short
- Not ISO 17025 accredited
- International shipping required
Carried verbatim from the source directory's editorial review, observed .